{"id":3494,"date":"2025-12-11T16:09:24","date_gmt":"2025-12-11T08:09:24","guid":{"rendered":"https:\/\/oretonstorage.com\/?p=3494"},"modified":"2025-12-11T16:09:24","modified_gmt":"2025-12-11T08:09:24","slug":"prestazioni-dellssd-esterno-collo-di-bottiglia-usb-thunderbolt","status":"publish","type":"post","link":"https:\/\/oretonstorage.com\/it\/blog\/prestazioni-dellssd-esterno-collo-di-bottiglia-usb-thunderbolt","title":{"rendered":"Quando le unit\u00e0 SSD esterne non raggiungono le velocit\u00e0 dichiarate: Il vero collo di bottiglia dietro i numeri"},"content":{"rendered":"<p data-start=\"235\" data-end=\"400\">Oggi le unit\u00e0 SSD esterne vengono commercializzate con velocit\u00e0 di lettura\/scrittura impressionanti: 1.000 MB\/s, 2.000 MB\/s, persino 3.000 MB\/s.<br data-start=\"341\" data-end=\"344\" \/>Ma nell'uso reale, molti utenti notano la stessa cosa:<\/p>\n<p data-start=\"402\" data-end=\"469\"><strong data-start=\"402\" data-end=\"469\">\"Perch\u00e9 la mia unit\u00e0 SSD portatile funziona molto pi\u00f9 lentamente rispetto alle specifiche tecniche?\".<\/strong><\/p>\n<p data-start=\"471\" data-end=\"566\">Il motivo principale \u00e8 semplice:<br data-start=\"496\" data-end=\"499\" \/><strong data-start=\"499\" data-end=\"566\">L'interfaccia USB\/Thunderbolt conta pi\u00f9 dell'unit\u00e0 SSD stessa.<\/strong><\/p>\n<p data-start=\"568\" data-end=\"727\">Qui di seguito, analizziamo <em data-start=\"589\" data-end=\"594\">perch\u00e9<\/em> Le prestazioni variano cos\u00ec tanto e cosa devono considerare i costruttori di sistemi, i distributori e i partner OEM quando scelgono un sistema di archiviazione portatile.<\/p>\n<hr data-start=\"729\" data-end=\"732\" \/>\n<h2 data-start=\"734\" data-end=\"781\"><strong data-start=\"737\" data-end=\"781\">1. L'interfaccia \u00e8 il vero limite di velocit\u00e0<\/strong><\/h2>\n<p data-start=\"782\" data-end=\"917\">Anche se l'unit\u00e0 NVMe interna di un'unit\u00e0 SSD portatile \u00e8 estremamente veloce, le prestazioni esterne sono limitate dal protocollo di connessione.<\/p>\n<h3 data-start=\"919\" data-end=\"950\"><strong data-start=\"923\" data-end=\"950\">Limiti dell'interfaccia comune<\/strong><\/h3>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"951\" data-end=\"1579\">\n<thead data-start=\"951\" data-end=\"1009\">\n<tr data-start=\"951\" data-end=\"1009\">\n<th data-start=\"951\" data-end=\"963\" data-col-size=\"sm\">Interfaccia<\/th>\n<th data-start=\"963\" data-end=\"981\" data-col-size=\"sm\">Max teorico<\/th>\n<th data-start=\"981\" data-end=\"1000\" data-col-size=\"sm\">Velocit\u00e0 nel mondo reale<\/th>\n<th data-start=\"1000\" data-end=\"1009\" data-col-size=\"md\">Note<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1069\" data-end=\"1579\">\n<tr data-start=\"1069\" data-end=\"1173\">\n<td data-start=\"1069\" data-end=\"1096\" data-col-size=\"sm\"><strong data-start=\"1071\" data-end=\"1095\">USB 3.2 Gen1 (5Gbps)<\/strong><\/td>\n<td data-col-size=\"sm\" data-start=\"1096\" data-end=\"1112\">~500-550 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"1112\" data-end=\"1128\">~380-450 MB\/s<\/td>\n<td data-col-size=\"md\" data-start=\"1128\" data-end=\"1173\">Il pi\u00f9 comune sui computer portatili\uff1bil pi\u00f9 grande collo di bottiglia<\/td>\n<\/tr>\n<tr data-start=\"1174\" data-end=\"1279\">\n<td data-start=\"1174\" data-end=\"1202\" data-col-size=\"sm\"><strong data-start=\"1176\" data-end=\"1201\">USB 3.2 Gen2 (10Gbps)<\/strong><\/td>\n<td data-col-size=\"sm\" data-start=\"1202\" data-end=\"1222\">~1.000-1.050 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"1222\" data-end=\"1240\">~850-1.000 MB\/s<\/td>\n<td data-col-size=\"md\" data-start=\"1240\" data-end=\"1279\">Mainstream per le moderne unit\u00e0 SSD esterne<\/td>\n<\/tr>\n<tr data-start=\"1280\" data-end=\"1375\">\n<td data-start=\"1280\" data-end=\"1310\" data-col-size=\"sm\"><strong data-start=\"1282\" data-end=\"1309\">USB 3.2 Gen2x2 (20Gbps)<\/strong><\/td>\n<td data-col-size=\"sm\" data-start=\"1310\" data-end=\"1324\">~2.000 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"1324\" data-end=\"1344\">~1.700-2.000 MB\/s<\/td>\n<td data-col-size=\"md\" data-start=\"1344\" data-end=\"1375\">Raramente supportato sui portatili<\/td>\n<\/tr>\n<tr data-start=\"1376\" data-end=\"1484\">\n<td data-start=\"1376\" data-end=\"1409\" data-col-size=\"sm\"><strong data-start=\"1378\" data-end=\"1408\">Thunderbolt 3 \/ 4 (40Gbps)<\/strong><\/td>\n<td data-col-size=\"sm\" data-start=\"1409\" data-end=\"1429\">~3.000-3.200 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"1429\" data-end=\"1449\">~2.800-3.100 MB\/s<\/td>\n<td data-col-size=\"md\" data-start=\"1449\" data-end=\"1484\">Richiede un involucro certificato TB<\/td>\n<\/tr>\n<tr data-start=\"1485\" data-end=\"1579\">\n<td data-start=\"1485\" data-end=\"1508\" data-col-size=\"sm\"><strong data-start=\"1487\" data-end=\"1507\">USB4 (20-40Gbps)<\/strong><\/td>\n<td data-col-size=\"sm\" data-start=\"1508\" data-end=\"1529\">~2.500-3.000+ MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"1529\" data-end=\"1538\">Variabile<\/td>\n<td data-col-size=\"md\" data-start=\"1538\" data-end=\"1579\">Grande potenziale, supporto inconsistente<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"1581\" data-end=\"1645\"><strong data-start=\"1581\" data-end=\"1645\">Stesso SSD, risultati molto diversi a seconda della porta.<\/strong><\/p>\n<hr data-start=\"1647\" data-end=\"1650\" \/>\n<h2 data-start=\"1652\" data-end=\"1708\"><strong data-start=\"1655\" data-end=\"1708\">2. Perch\u00e9 molti portatili rallentano ancora le unit\u00e0 SSD esterne<\/strong><\/h2>\n<p data-start=\"1709\" data-end=\"1744\">Anche i computer portatili di qualit\u00e0 superiore spesso forniscono:<\/p>\n<ul data-start=\"1746\" data-end=\"1940\">\n<li data-start=\"1746\" data-end=\"1784\">\n<p data-start=\"1748\" data-end=\"1784\"><strong data-start=\"1748\" data-end=\"1772\">1 porta USB 3.2 Gen1<\/strong>, non Gen2<\/p>\n<\/li>\n<li data-start=\"1785\" data-end=\"1818\">\n<p data-start=\"1787\" data-end=\"1818\"><strong data-start=\"1787\" data-end=\"1816\">Nessun supporto USB 3.2 Gen2x2<\/strong><\/p>\n<\/li>\n<li data-start=\"1819\" data-end=\"1872\">\n<p data-start=\"1821\" data-end=\"1872\"><strong data-start=\"1821\" data-end=\"1870\">Corsie condivise che riducono la larghezza di banda sotto carico<\/strong><\/p>\n<\/li>\n<li data-start=\"1873\" data-end=\"1940\">\n<p data-start=\"1875\" data-end=\"1940\"><strong data-start=\"1875\" data-end=\"1906\">Porte USB-C non Thunderbolt<\/strong> che sembrano identici alle porte TB<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1942\" data-end=\"1974\">Questo porta a uno scenario comune:<\/p>\n<blockquote data-start=\"1976\" data-end=\"2067\">\n<p data-start=\"1978\" data-end=\"2067\">Un utente acquista un \"SSD portatile da 2000MB\/s\"...<br data-start=\"2016\" data-end=\"2019\" \/>...ma la porta del laptop pu\u00f2 raggiungere solo 500MB\/s.<\/p>\n<\/blockquote>\n<p data-start=\"2069\" data-end=\"2169\">Per loro l'SSD sembra \"lento\".<br data-start=\"2099\" data-end=\"2102\" \/>In realt\u00e0, il <strong data-start=\"2118\" data-end=\"2144\">la porta \u00e8 il collo di bottiglia<\/strong>non il dispositivo di archiviazione.<\/p>\n<hr data-start=\"2171\" data-end=\"2174\" \/>\n<h2 data-start=\"2176\" data-end=\"2222\"><strong data-start=\"2179\" data-end=\"2222\">3. Anche il controllore dell'involucro \u00e8 importante<\/strong><\/h2>\n<p data-start=\"2223\" data-end=\"2298\">Le prestazioni sono influenzate anche dalla <strong data-start=\"2261\" data-end=\"2276\">chip a ponte<\/strong> all'interno dell'involucro.<\/p>\n<p data-start=\"2300\" data-end=\"2333\">I problemi pi\u00f9 comuni dei controllori includono:<\/p>\n<ul data-start=\"2335\" data-end=\"2535\">\n<li data-start=\"2335\" data-end=\"2380\">\n<p data-start=\"2337\" data-end=\"2380\">Larghezza limitata della corsia PCIe (PCIe 3.0 x1 vs x2)<\/p>\n<\/li>\n<li data-start=\"2381\" data-end=\"2436\">\n<p data-start=\"2383\" data-end=\"2436\">Gestione termica insufficiente con conseguente throttling<\/p>\n<\/li>\n<li data-start=\"2437\" data-end=\"2482\">\n<p data-start=\"2439\" data-end=\"2482\">Il firmware non \u00e8 ottimizzato per le scritture prolungate<\/p>\n<\/li>\n<li data-start=\"2483\" data-end=\"2535\">\n<p data-start=\"2485\" data-end=\"2535\">Scarsa compatibilit\u00e0 con i vecchi controller host USB<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2537\" data-end=\"2622\">Ecco perch\u00e9 due unit\u00e0 SSD portatili che utilizzano unit\u00e0 NVMe simili possono avere prestazioni molto diverse.<\/p>\n<hr data-start=\"2624\" data-end=\"2627\" \/>\n<h2 data-start=\"2629\" data-end=\"2694\"><strong data-start=\"2632\" data-end=\"2694\">4. Prestazioni sostenute: Dove l'ingegneria conta davvero<\/strong><\/h2>\n<p data-start=\"2695\" data-end=\"2837\">Le velocit\u00e0 di raffica elevate fanno bella mostra di s\u00e9 nelle schede tecniche.<br data-start=\"2738\" data-end=\"2741\" \/>Ma i carichi di lavoro con file di grandi dimensioni (progetti video, backup, imaging) dipendono da <strong data-start=\"2811\" data-end=\"2824\">sostenuta<\/strong> prestazioni.<\/p>\n<p data-start=\"2839\" data-end=\"2863\">Fattori ingegneristici chiave:<\/p>\n<ul data-start=\"2865\" data-end=\"3003\">\n<li data-start=\"2865\" data-end=\"2900\">\n<p data-start=\"2867\" data-end=\"2900\">Comportamento di NVMe con DRAM e senza DRAM<\/p>\n<\/li>\n<li data-start=\"2901\" data-end=\"2928\">\n<p data-start=\"2903\" data-end=\"2928\">Limiti di dimensione della cache SLC<\/p>\n<\/li>\n<li data-start=\"2929\" data-end=\"2973\">\n<p data-start=\"2931\" data-end=\"2973\">Strozzatura termica in involucri compatti<\/p>\n<\/li>\n<li data-start=\"2974\" data-end=\"3003\">\n<p data-start=\"2976\" data-end=\"3003\">Erogazione di energia tramite USB-C<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3005\" data-end=\"3075\">Un'unit\u00e0 SSD esterna ben progettata non si limita a raggiungere picchi elevati, ma rimane stabile.<\/p>\n<hr data-start=\"3077\" data-end=\"3080\" \/>\n<h2 data-start=\"3082\" data-end=\"3144\"><strong data-start=\"3085\" data-end=\"3144\">5. Come scegliere l'unit\u00e0 SSD esterna giusta per il vostro sistema<\/strong><\/h2>\n<p data-start=\"3145\" data-end=\"3210\">Ecco una semplice regola per gli integratori OEM e gli acquirenti professionali:<\/p>\n<h3 data-start=\"3212\" data-end=\"3284\"><strong data-start=\"3216\" data-end=\"3284\">Abbinate l'SSD all'interfaccia dell'host, non il contrario.<\/strong><\/h3>\n<p data-start=\"3286\" data-end=\"3322\"><strong data-start=\"3286\" data-end=\"3322\">Se il vostro portatile\/desktop supporta...<\/strong><\/p>\n<ul data-start=\"3324\" data-end=\"3510\">\n<li data-start=\"3324\" data-end=\"3387\">\n<p data-start=\"3326\" data-end=\"3387\"><strong data-start=\"3326\" data-end=\"3349\">Solo USB 3.2 Gen1 \u2192<\/strong> Scegliete le unit\u00e0 SSD esterne orientate al valore<\/p>\n<\/li>\n<li data-start=\"3388\" data-end=\"3448\">\n<p data-start=\"3390\" data-end=\"3448\"><strong data-start=\"3390\" data-end=\"3408\">USB 3.2 Gen2 \u2192<\/strong> SSD NVMe portatili a media velocit\u00e0 (~1GB\/s)<\/p>\n<\/li>\n<li data-start=\"3449\" data-end=\"3510\">\n<p data-start=\"3451\" data-end=\"3510\"><strong data-start=\"3451\" data-end=\"3480\">Thunderbolt 3\/4 o USB4 \u2192<\/strong> SSD portatili NVMe di fascia alta<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3512\" data-end=\"3529\">E controllate sempre:<\/p>\n<ul data-start=\"3531\" data-end=\"3664\">\n<li data-start=\"3531\" data-end=\"3567\">\n<p data-start=\"3533\" data-end=\"3567\">Marcatura delle porte (USB-C \u2260 Thunderbolt)<\/p>\n<\/li>\n<li data-start=\"3568\" data-end=\"3596\">\n<p data-start=\"3570\" data-end=\"3596\">Specifiche del controller dell'involucro<\/p>\n<\/li>\n<li data-start=\"3597\" data-end=\"3613\">\n<p data-start=\"3599\" data-end=\"3613\">Progettazione termica<\/p>\n<\/li>\n<li data-start=\"3614\" data-end=\"3664\">\n<p data-start=\"3616\" data-end=\"3664\">Comportamento effettivo del benchmark, non solo numeri di picco<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"3666\" data-end=\"3669\" \/>\n<h2 data-start=\"3671\" data-end=\"3730\"><strong data-start=\"3674\" data-end=\"3730\">6. Perch\u00e9 la stabilit\u00e0 dell'offerta \u00e8 importante per gli acquirenti professionali<\/strong><\/h2>\n<p data-start=\"3731\" data-end=\"3866\">Per i clienti che riforniscono i canali di vendita al dettaglio o che abbinano lo storage ai loro sistemi, <strong data-start=\"3810\" data-end=\"3825\">coerenza<\/strong> \u00e8 pi\u00f9 importante delle prestazioni di picco.<\/p>\n<p data-start=\"3868\" data-end=\"3903\">A Oreton, il nostro portafoglio PSSD utilizza:<\/p>\n<ul data-start=\"3905\" data-end=\"4157\">\n<li data-start=\"3905\" data-end=\"3953\">\n<p data-start=\"3907\" data-end=\"3953\"><strong data-start=\"3907\" data-end=\"3951\">Combinazioni controller\/flash coerenti<\/strong><\/p>\n<\/li>\n<li data-start=\"3954\" data-end=\"3998\">\n<p data-start=\"3956\" data-end=\"3998\"><strong data-start=\"3956\" data-end=\"3996\">Design portatile ottimizzato termicamente<\/strong><\/p>\n<\/li>\n<li data-start=\"3999\" data-end=\"4041\">\n<p data-start=\"4001\" data-end=\"4041\"><strong data-start=\"4001\" data-end=\"4039\">CQ + convalida secondaria interna<\/strong><\/p>\n<\/li>\n<li data-start=\"4042\" data-end=\"4085\">\n<p data-start=\"4044\" data-end=\"4085\"><strong data-start=\"4044\" data-end=\"4083\">Rilasci del firmware incentrati sulla stabilit\u00e0<\/strong><\/p>\n<\/li>\n<li data-start=\"4086\" data-end=\"4157\">\n<p data-start=\"4088\" data-end=\"4157\"><strong data-start=\"4088\" data-end=\"4155\">Continuit\u00e0 di alimentazione a lungo termine per le serie SATA, NVMe e Portable<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4159\" data-end=\"4276\">Questo assicura che <strong data-start=\"4177\" data-end=\"4210\">le prestazioni rimangono prevedibili<\/strong> tra i lotti, una preoccupazione fondamentale per i partner OEM e di distribuzione.<\/p>\n<hr data-start=\"4278\" data-end=\"4281\" \/>\n<h2 data-start=\"4283\" data-end=\"4340\"><strong data-start=\"4286\" data-end=\"4340\">7. Esempio del mondo reale: Stessa unit\u00e0, porte diverse<\/strong><\/h2>\n<p data-start=\"4341\" data-end=\"4409\">Un cliente ha recentemente testato un'unit\u00e0 SSD esterna Oreton su tre macchine:<\/p>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"4411\" data-end=\"4625\">\n<thead data-start=\"4411\" data-end=\"4442\">\n<tr data-start=\"4411\" data-end=\"4442\">\n<th data-start=\"4411\" data-end=\"4420\" data-col-size=\"sm\">Dispositivo<\/th>\n<th data-start=\"4420\" data-end=\"4432\" data-col-size=\"sm\">Tipo di porta<\/th>\n<th data-start=\"4432\" data-end=\"4442\" data-col-size=\"sm\">Risultato<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4475\" data-end=\"4625\">\n<tr data-start=\"4475\" data-end=\"4528\">\n<td data-start=\"4475\" data-end=\"4497\" data-col-size=\"sm\">Computer portatile da ufficio pi\u00f9 vecchio<\/td>\n<td data-start=\"4497\" data-end=\"4512\" data-col-size=\"sm\">USB 3.2 Gen1<\/td>\n<td data-start=\"4512\" data-end=\"4528\" data-col-size=\"sm\"><strong data-start=\"4514\" data-end=\"4526\">430 MB\/s<\/strong><\/td>\n<\/tr>\n<tr data-start=\"4529\" data-end=\"4576\">\n<td data-start=\"4529\" data-end=\"4545\" data-col-size=\"sm\">Nuovo ultrabook<\/td>\n<td data-start=\"4545\" data-end=\"4560\" data-col-size=\"sm\">USB 3.2 Gen2<\/td>\n<td data-start=\"4560\" data-end=\"4576\" data-col-size=\"sm\"><strong data-start=\"4562\" data-end=\"4574\">980 MB\/s<\/strong><\/td>\n<\/tr>\n<tr data-start=\"4577\" data-end=\"4625\">\n<td data-start=\"4577\" data-end=\"4591\" data-col-size=\"sm\">Postazione di lavoro<\/td>\n<td data-start=\"4591\" data-end=\"4607\" data-col-size=\"sm\">Thunderbolt 4<\/td>\n<td data-start=\"4607\" data-end=\"4625\" data-col-size=\"sm\"><strong data-start=\"4609\" data-end=\"4623\">2.850 MB\/s<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"4627\" data-end=\"4696\">Stesso SSD.<br data-start=\"4636\" data-end=\"4639\" \/>Stesso involucro.<br data-start=\"4654\" data-end=\"4657\" \/>Tre esperienze completamente diverse.<\/p>\n<p data-start=\"4698\" data-end=\"4774\">Questo illustra <strong data-start=\"4715\" data-end=\"4773\">Perch\u00e9 la comprensione dell'interfaccia \u00e8 pi\u00f9 importante che mai<\/strong>.<\/p>\n<hr data-start=\"4776\" data-end=\"4779\" \/>\n<h1 data-start=\"4781\" data-end=\"4845\"><strong data-start=\"4783\" data-end=\"4845\">Conclusione: La velocit\u00e0 delle unit\u00e0 SSD portatili non \u00e8 mai solo una questione di unit\u00e0 SSD<\/strong><\/h1>\n<p data-start=\"4847\" data-end=\"4918\">Se l'unit\u00e0 SSD esterna non \u00e8 cos\u00ec veloce come pubblicizzato, di solito \u00e8 perch\u00e9:<\/p>\n<ul data-start=\"4920\" data-end=\"5091\">\n<li data-start=\"4920\" data-end=\"4980\">\n<p data-start=\"4922\" data-end=\"4980\">Il <strong data-start=\"4926\" data-end=\"4955\">Interfaccia USB\/Thunderbolt<\/strong> \u00e8 il fattore limitante<\/p>\n<\/li>\n<li data-start=\"4981\" data-end=\"5034\">\n<p data-start=\"4983\" data-end=\"5034\">Il <strong data-start=\"4987\" data-end=\"5011\">controllore dell'involucro<\/strong> fissa il proprio tetto massimo<\/p>\n<\/li>\n<li data-start=\"5035\" data-end=\"5091\">\n<p data-start=\"5037\" data-end=\"5091\">Il <strong data-start=\"5041\" data-end=\"5056\">sistema host<\/strong> non supporta una larghezza di banda superiore<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5093\" data-end=\"5242\">La comprensione di queste relazioni aiuta gli acquirenti, gli ingegneri e i partner OEM a scegliere il prodotto giusto e a evitare che le aspettative di prestazioni non corrispondano.<\/p>","protected":false},"excerpt":{"rendered":"<p>Oggi le unit\u00e0 SSD esterne sono commercializzate con velocit\u00e0 di lettura\/scrittura impressionanti: 1.000 MB\/s, 2.000 MB\/s, persino 3.000 MB\/s. Ma nell'uso reale, molti utenti notano la stessa cosa: \u201cPerch\u00e9 la mia unit\u00e0 SSD portatile \u00e8 molto pi\u00f9 lenta rispetto alle specifiche tecniche?\u201d. Il motivo principale \u00e8 semplice: l'interfaccia USB\/Thunderbolt conta pi\u00f9 dell'unit\u00e0 SSD stessa. Qui di seguito spieghiamo perch\u00e9 le prestazioni variano...<\/p>","protected":false},"author":3,"featured_media":3495,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>When External SSDs Don\u2019t Reach Their Advertised Speeds: The Real Bottleneck Behind the Numbers -<\/title>\n<meta name=\"description\" content=\"Learn why your external SSD may not reach advertised speeds. Explore how USB and Thunderbolt interfaces, enclosure controllers, and host system compatibility affect real-world performance, and what to check before buying or integrating portable SSDs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oretonstorage.com\/it\/blog\/prestazioni-dellssd-esterno-collo-di-bottiglia-usb-thunderbolt\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When External SSDs Don\u2019t Reach Their Advertised Speeds: The Real Bottleneck Behind the Numbers -\" \/>\n<meta property=\"og:description\" content=\"Learn why your external SSD may not reach advertised speeds. Explore how USB and Thunderbolt interfaces, enclosure controllers, and host system compatibility affect real-world performance, and what to check before buying or integrating portable SSDs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/oretonstorage.com\/it\/blog\/prestazioni-dellssd-esterno-collo-di-bottiglia-usb-thunderbolt\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-11T08:09:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/12\/2025.09.15-773x1030.png\" \/>\n\t<meta property=\"og:image:width\" content=\"773\" \/>\n\t<meta property=\"og:image:height\" content=\"1030\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Echo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"Echo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt\"},\"author\":{\"name\":\"Echo\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#\\\/schema\\\/person\\\/691da96ccdd2a899702e96be4c0b892e\"},\"headline\":\"When External SSDs Don\u2019t Reach Their Advertised Speeds: The Real Bottleneck Behind the Numbers\",\"datePublished\":\"2025-12-11T08:09:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt\"},\"wordCount\":664,\"image\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/oretonstorage.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/2025.09.15-scaled.png\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"it-IT\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt\",\"url\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt\",\"name\":\"When External SSDs Don\u2019t Reach Their Advertised Speeds: The Real Bottleneck Behind the Numbers -\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/external-ssd-performance-bottleneck-usb-thunderbolt#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/oretonstorage.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/2025.09.15-scaled.png\",\"datePublished\":\"2025-12-11T08:09:24+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#\\\/schema\\\/person\\\/691da96ccdd2a899702e96be4c0b892e\"},\"description\":\"Learn why your external SSD may not reach advertised speeds. 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