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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.
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.
| Connector(s) | |
| Drive Connectors | SATA Data & Power Combo (7+15 pin) Receptacle |
| Host Connectors | Power eSATA (11 pin, eSATA/USB, 5V) Receptacle |
| USB 3.0 Micro-B (10 pin, SuperSpeed) Female | |
| Environmental | |
| Humidity | Operation Humidity: 10% ~ 90% RH Storage Humidity: 5% ~ 95% RH |
| Operating Temperature | 0?C to 40?C (32?F to 104?F) |
| Storage Temperature | -10?C to 65?C (14?F to 149?F) |
| Hardware | |
| Bus Type | USB 3.0 & eSATA |
| Chipset ID | ASMedia - ASM1153E ASMedia - ASM1456 |
| Compatible Drive Types | SATA |
| Drive Installation | Fixed |
| Drive Size | 2.5in |
| Fan(s) | No |
| Interface | eSATA |
| USB 3.0 | |
| Number of 2.5 inch bays | 1 |
| Number of Drives | 1 |
| Indicators | |
| LED Indicators | Power/Activity |
| Packaging Information | |
| Shipping (Package) Weight | 0.3 kg [0.6 lb] |
| Performance | |
| Max Drive Capacity | Currently tested with up to 2TB 7200 RPM hard drives |
| Maximum Data Transfer Rate | 6 Gbps - eSATA 5 Gbps - USB 3.0 |
| Type and Rate | eSATA (6 Gbps) |
| USB 3.0 - 5 Gbit/s | |
| UASP Support | Yes |
| Physical Characteristics | |
| Color | Silver |
| Enclosure Type | Aluminum and Plastic |
| Max Drive Height | 9.5 mm [0.4 in] |
| Product Height | 16 mm [0.6 in] |
| Product Length | 125 mm [4.9 in] |
| Product Weight | 96 g [3.4 oz] |
| Product Width | 77 mm [3 in] |
| Power | |
| Plug Type | H |
| Power Source | USB-Powered |
| Software | |
| OS Compatibility | OS independent; No software or drivers required |
| What's in the Box | |
| Included in Package | eSATA cable |
| Installation screws (with screw driver) | |
| Instruction manual | |
| Phillips head screw driver | |
| USB 3.0 Cable | |
| USB 3.0/eSATAp 2.5" SATA Hard Drive Enclosure | |
| USB to DC power adapter | |
| Storage | |
| Number of storage drives supported How many storage drives can be fit into the product at once. | 1 |
| Storage drive size The size of the storage drive, given in inches (''). | 2.5" |
| Supported storage drive interfaces | Serial ATA,Serial ATA II,Serial ATA III |
| Supported storage drive heights | 9.5 mm |
| Maximum storage capacity The maximum amount of data that can be stored in the device. | 2 TB |
| Ports & interfaces | |
| USB connectivity The product has USB connector. |
 |
| USB connector type The type of USB connector/port that this product has. | Micro-USB B |
| USB connector gender | Female |
| USB ports quantity | 1 |
| Integrated USB cable |
 |
| eSATA ports quantity The number of ports (interfaces) for eSATA. eSATA is a a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and optical drives. | 1 |
| Design | |
| Product type The sub-category of the product. | HDD/SSD enclosure |
| Product colour The colour e.g. red, blue, green, black, white. | Silver |
| Material The material from which a thing is or can be made e.g. wood, plastic. | Aluminum, Plastic |
| LED indicators | Activity,Power |
| RoHS compliance The Restriction of Hazardous Substances (RoHS) Directive aims to restrict certain dangerous substances commonly used in electrical and electronic equipment. Any RoHS compliant product is tested for the presence of Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent chromium (Hex-Cr), Polybrominated biphenyls (PBB), and Polybrominated diphenyl ethers (PBDE). PBB and PBDE are flame retardants used in several plastics. For Cadmium and Hexavalent chromium, there must be less than 0.01% of the substance by weight at raw homogeneous materials level. For Lead, PBB, and PBDE, there must be no more than 0.1% of the material, when calculated by weight at raw homogeneous materials. Any RoHS compliant component must have 100 ppm or less of mercury and the mercury must not have been intentionally added to the component. In the EU, some military and medical equipment are exempt from RoHS compliance. |
|
| Certification | FCC, CE, REACH |
| Performance | |
| Data transfer rate Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations. | 6 Gbit/s |
| Chipset Set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found in the motherboard of a computer. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance. | ASMedia - ASM1153E, ASMedia - ASM1456 |
| UASP support |
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| Plug and Play Indicates whether this product supports is "plug and play". Plug and play is hardware or software that, after being installed ("plugged in"), can immediately be used ("played with"), as opposed to hardware or software which requires configuration. |
|
| Power | |
| Power source type What the power source is. | USB |
| External power adapter |
|
| Operational conditions | |
| Operating temperature (T-T) The minimum and maximum temperatures at which the product can be safely operated. | 0 - 40 °C |
| Storage temperature (T-T) The minimum and maximum temperatures at which the product can be safely stored. | -10 - 65 °C |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 5 - 95% |
| Weight & dimensions | |
| Width The measurement or extent of something from side to side. | 77 mm |
| Depth The distance from the front to the back of something. | 125 mm |
| Height The measurement of the product from head to foot or from base to top. | 16 mm |
| Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies. | 98 g |
| Package width The distance from one side of the packaging to the other. | 179 mm |
| Package depth The distance from the front to the back of the packaging. | 135 mm |
| Package height The distance from the top to the bottom of the packaging. | 42 mm |
| Package weight Weight of the packaged product. | 278 g |
| Packaging content | |
| Cables included | eSATA,USB |
| Screws included |
|
| Screwdriver included |
|
| Manual |
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| Other features | |
| Power plug type | Type H |
| SKU | 244734 |
| MPN | S251SMU33EP |
| Brand | Startech |
| Product Condition | Brand New/Unused |
| Warranty Period | 2 Years Warranty |
| Warranty Contact | https://www.startech.com/ |