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Tool-free USB 3.1 Gen 2 enclosure for 2.5-inch SATA drives
A lightweight tool-free enclosure for one compatible 2.5-inch SATA HDD or SSD, with USB 3.1 Gen 2 10Gbps host connectivity, UASP, TRIM and USB-powered operation.

Key capabilities
Tool-free installation
Install or change the 2.5-inch SATA drive without assembly screws.
10Gbps USB host interface
Provides USB 3.1 Gen 2 host connectivity up to 10Gbps.
SATA III with UASP
Supports SATA III up to 6Gbps, UASP, TRIM and 4Kn.
USB-powered portability
Operates from USB power without a separate adapter.
What to know before buying
Maximum storage speed depends on the installed SATA drive and SATA III 6Gbps interface. The exact specification lists one drive up to 9.5mm high and testing with drives up to 2TB at 7200 RPM.
Australian version and manufacturer warranty
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2-year manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
Frequently asked questions
What drives can the S251BPU313 use?
Is installation tool-free?
What USB speed is supported?
Does it support SATA III?
Does it support UASP and TRIM?
Does it require external power?
What is included?
What warranty applies in Australia?
(S251BPU313)
Features and highlights
Tool-free installation
Install or change the 2.5-inch SATA drive without assembly screws.
10Gbps USB host interface
Provides USB 3.1 Gen 2 host connectivity up to 10Gbps.
SATA III with UASP
Supports SATA III up to 6Gbps, UASP, TRIM and 4Kn.
USB-powered portability
Operates from USB power without a separate adapter.
- Tool-free
- USB 10Gbps
- 2.5-inch SATA
- 2-year warranty
Specifications
Verified specifications for StarTech S251BPU313.

Warranty Information
| Warranty | 2 Years |
|---|
Hardware
| Bus Type | USB 3.1 Gen 2 |
|---|---|
| Chipset ID | ASMedia - ASM1351 |
| Compatible Drive Types | SATA |
| Drive Installation | Fixed |
| Drive Size | 2.5in |
| Fan(s) | No |
| Interface | USB 3.1 Gen 2 |
| Number of Drives | 1 |
Performance
| 4Kn Support | Yes |
|---|---|
| Max Drive Capacity | Currently tested with hard drives up to 2TB at 7200 RPM |
| Maximum Data Transfer Rate | 10 Gbps |
| TRIM Support | Yes |
| Type and Rate | USB 3.1 Gen 2 - 10 Gbit/s |
| Type and Rate | SATA III (6 Gbps) |
| UASP Support | Yes |
Connector(s)
| Drive Connectors | 1 - SATA Data & Power Combo (7+15 pin) Female |
|---|---|
| Host Connectors | 1 - USB 3.1 USB Type Micro-B (10 pin, Gen 2, 10 Gbps) Female |
Software
| OS Compatibility | OS independent; No software or drivers required |
|---|
Indicators
| LED Indicators | 1 - Power & Activity |
|---|
Power
| Power Source | USB-Powered |
|---|
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) |
Physical Characteristics
| Color | Black |
|---|---|
| Enclosure Type | Plastic |
| Max Drive Height | 0.4 in [9.5 mm] |
| Product Height | 0.6 in [1.5 cm] |
| Product Length | 5.2 in [13.2 cm] |
| Product Width | 3.5 in [88 mm] |
| Weight of Product | 2.6 oz [74 g] |
Packaging Information
| Package Height | 1.7 in [44 mm] |
|---|---|
| Package Length | 5.2 in [13.3 cm] |
| Package Width | 7 in [17.8 cm] |
| Shipping (Package) Weight | 6.9 oz [195 g] |
What's in the Box
| Included in Package | 1 - USB 3.1 to 2.5" SATA HDD enclosure |
|---|---|
| Included in Package | 1 - USB 3.1 A to Micro B cable - 23 inches |
| Included in Package | 1 - drive cushion |
| Included in Package | 1 - quick start guide |
| SKU | S251BPU313 |
| Barcode # | 65030861946 |
| Brand | Startech |
| Shipping Weight | 0.1800kg |
| Shipping Width | 0.100m |
| Shipping Height | 0.050m |
| Shipping Length | 0.170m |
| Shipping Cubic | 0.000850000m3 |
StarTech.com warranty in Australia
This item is the Australian version supplied by DeviceDeal and is covered by the official StarTech.com 2-year manufacturer warranty in Australia.
Please retain your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims are subject to StarTech.com warranty terms, eligibility requirements and product assessment.
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