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StarTech.com eSATAp or USB 3.0 External 2.5-Inch SATA III 6Gbps Hard Drive/Solid State Drive Enclosure with UASP (S251SMU33EP)

4.3 4.3 out of 5 stars 193 ratings

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USB 3.0 | eSATA
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Purchase options and add-ons

Hardware interface USB 3.0
Brand StarTech.com
Colour Silver
Hardware platform PC;Mac;Linux
Material Aluminum
Item weight 0.1 Kilograms
Compatible devices PC; Mac
Hard disk form factor 2.5 Inches
Max number of supported devices 1
Data transfer rate 6 Megabits Per Second

About this item

  • Versatile connectivity options, through either USB or eSATA/eSATAp
  • Maximum portability with a small footprint, and support for eSATAp
  • Saves time, with faster file transfers when used with a UASP-supported host

Product details

  • Is discontinued by manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 17.7 x 13.31 x 3.81 cm; 98 g
  • Manufacturer ‏ : ‎ StarTech.com
  • ASIN ‏ : ‎ B00P1S5IWG
  • Item model number ‏ : ‎ S251SMU33EP
  • Country/Region of origin ‏ : ‎ China
  • Customer reviews:
    4.3 4.3 out of 5 stars 193 ratings

Product information

Technical Details

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StarTech.com

StarTech.com eSATAp or USB 3.0 External 2.5-Inch SATA III 6Gbps Hard Drive/Solid State Drive Enclosure with UASP (S251SMU33EP)


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Product description

Turn a 2.5" SATA III HDD / SSD into an external hard drive that can connect to your computer through either eSATAp at 6 Gbps, or USB 3.0 with UASP at 5 Gbps - The S251SMU33EP USB 3.0 / eSATAp drive enclosure turns a 2.5in SATA hard drive (HDD) or solid state drive (SSD) into an external portable hard drive that can connect to any USB or eSATA-enabled computer system. For fast performance and efficient data transfers when connected through eSATA, the enclosure supports full SATA III transfer speeds -- up to 6 Gbps. For universal compatibility, the S251SMU33EP can be connected through USB 3.0 with transfer speeds up 5 Gbps plus support for UASP, which delivers performance up to 70% faster than conventional USB 3.0 when paired with a UASP-enabled host controller to utilize the full potential of your SATA III hard drives. See our UASP testing results below. Designed for maximum portability, the S251SMU33EP doesn't require an external power adapter when connected to an eSATAp (USB + eSATA combo) host port. The 2.5in enclosure supports the fastest drive technologies including SATA III (6 Gbps), hybrid drives and solid state drives (SSD), saving you time by ensuring you're getting the most out of your drive performance.  To ensure compatibility with your computer system, the S251SMU33EP supports all of the leading operating systems, including: Microsoft Windows, Apple OSX, Linux, and Google Chrome OS. The S251SMU33EP is backed by a StarTech.com 2-year warranty and free lifetime technical support. Improved Performance with UASP UASP is supported in Windows 8, Mac OSX (10.8 or above), and Linux. In testing, UASP performs with a 70% faster read speed and 40% faster write speed over traditional USB 3.0 at peak performance. At the same peak in testing UASP also shows an 80% reduction in required processor resources. Testing results were obtained using an Intel Ivy Bridge system, a UASP-enabled StarTech.com Enclosure, and a SATA III solid state drive.


Designed for maximum portability

The S251SMU33EP USB 3.0 / eSATAp drive enclosure turns a 2.5in SATA hard drive (HDD) or solid state drive (SSD) into an external portable hard drive that can connect to any USB or eSATA-enabled computer system.

For fast performance and efficient data transfers when connected through eSATA, the enclosure supports full SATA III transfer speeds -- up to 6 Gbps. For universal compatibility, the S251SMU33EP can be connected through USB 3.0 with transfer speeds up 5 Gbps plus support for UASP, which delivers performance up to 70% faster than conventional USB 3.0 when paired with a UASP-enabled host controller to utilize the full potential of your SATA III hard drives. See our UASP testing results below for further details.

Designed for maximum portability, the S251SMU33EP doesn't require an external power adapter when connected to an eSATAp (USB + eSATA combo) host port.

Improved Performance with UASP

UASP is supported in Windows 8, Mac OSX (10.8 or above), and Linux. In testing, UASP performs with a 70% faster read speed and 40% faster write speed over traditional USB 3.0 at peak performance.

Applications

Take advantage of laptops and desktops that feature eSATA connectivity.

Create a fast, portable external storage solution for Ultrabooks, laptops or Chromebooks.

Add extra storage to any USB/eSATA-enabled computer system.

Back up important data to an external storage device.

Share large files between computers quickly and securely without a network connection.

Retrieve data from your SATA drive, or turn your unused drive into additional external storage space.

StarTech Packaging

Look for StarTech Branded Packaging to ensure you are getting a genuine StarTech product.

What's in the Box

1 - USB 3.0/eSATAp 2.5" SATA Hard Drive Enclosure.

1 - USB 3.0 Cable.

1 - eSATA cable.

1 - Installation screws (with screw driver).

1 - Phillips head screw driver.

1 - USB to DC power adapter.

1 - Instruction manual.

Features

  • Supports SATA III & UASP for optimal performance
  • eSATA or USB 3.0 interface options
  • Supports power over eSATA (eSATAp, eSATA/USB combo port) with no additional power adapter
  • Aluminum enclosure
  • Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives
  • Compatible with USB 3.0 / 2.0 / 1.1 (5 Gbps / 480 Mbps / 1.5 Mbps) host connections

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
193 global ratings

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Erik
5.0 out of 5 stars Caro ma vale tutto il suo prezzo
Reviewed in Italy on 8 September 2021
Style Name: USB 3.0 | eSATAVerified Purchase
Si tratta di un contenitore per dischi esterni da 2.5 pollici con doppia interfaccia eSATA e USB 3. Rispetto ai contenitori da 10 euro costa molto di piu' ma la qualita' costruttiva e' ottima. Io l'ho preso per l'interfaccia eSATA che permette di collegarlo a un portatile (nel mio caso Dell) e partire da disco esterno come se fosse interno. Funziona perfettamente con Linux (Ubuntu 18 e 20). Come per tutti i contenitori esterni, occorre fare attenzione che l'assorbimento totale con il disco dentro sia minore di 500 mA altrimenti alcune porte USB potrebbero non funzionare. Con i dischi SSD normalmente il problema non si pone.
Dmitry Smirnov
3.0 out of 5 stars Works OK but disappointing.
Reviewed in Australia on 24 December 2021
Style Name: USB 3.0 | eSATAVerified Purchase
It is the only enclosure with support for eSATAp (power-over-eSATA) but eSATAp cable is *not* included (only ordinary eSATA cable is provided) so you can't use this functionality.

Buying a compatible eSATAp cable is very difficult because they are rare.
I was lucky to order compatible "PWRESATA-CBL" eSATAp cable from Amazon and it cost me as much as the cost of the enclosure itself to get two eSATAp cables.

Enclosure is poorly designed. Unlike full-metal Vantec NexStar CX, the drive caddy is plastic, insulating disk and preventing heat transfer to outer aluminium case that could have been a perfect heat sink.

Otherwise enclosure is OK, working well with all connectivity options.
M. David KOCH
5.0 out of 5 stars Robuste et polyvalent
Reviewed in France on 31 October 2015
Style Name: USB 3.0 | eSATAVerified Purchase
Dispose de toute la connectique nécessaire (sauf câble eSATAp, mais propose un câble eSATA plus un USB power à la place). Très simple d'emploi, requière de glisser le disque dur avec prudence en le faisant pivoter dans le logement, pas simplement le pousser de façon transversale. Les débits atteignent le maximum possible du disque dur 2"1/2 (160 MiB/s) alors que le maximum théorique est de 625 MiB/s (5 Gbps en USB3.0 et 6 Gbps en eSATA). Attention, les vis pour tenir le capot sont vraiment petites, c'est d'ailleurs pour ça qu'ils en ont mis 3 de chaque plutôt que 2 (au cas où...). Deux fois plus cher que la concurrence, mais boitier alu et qualité au top, ça a un prix.
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massimblan
5.0 out of 5 stars OTTIMO StarTech.com Box Esterno per Disco Rigido SATA III 2.5" USB 3.0 con UASP
Reviewed in Italy on 8 March 2019
Style Name: USB 3.0 | eSATAVerified Purchase
Quasi perfetto per l'utilizzo che serve a me. Nel mio caso, una volta inserito lo SSD/HDD, difficilmente avrò necessità di aprirlo per sostituire gli stessi. Per operazioni Inserisci/Disinserisci frequenti ho altri Box . A me serve come riserva dati per il Tablet PC, e avendolo provato sia con SSD che con HDD su diversi PC ho potuto verificarne il buon funzionamento. La velocità di trasferimento dati varia dal tipo di HDD/SSD inserito. Da tenere in considerazione il tipo di custodia, perché essendo di alluminio a spigolo vivo, in molti modelli si rischia di rovinare la stessa custodia, oltre alla difficoltà d'inserimento. Sono soddisfatto.
Alex S
5.0 out of 5 stars Endlich ein schnelles Gehäuse
Reviewed in Germany on 28 November 2016
Style Name: USB 3.0 | eSATAVerified Purchase
das via USB 3 am MacBookPro auch über 400 MB/s schafft.
Viele andere sind zurückgegangen, dies bleibt.
Perfekt für die USA mini.
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