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StarTech SATA to USB Adapter, USB 5Gbps, 2.5in SATA III (USB3S2SAT3CB)
StarTech.com

StarTech SATA to USB Adapter, USB 5Gbps, 2.5in SATA III (USB3S2SAT3CB)

Bottom line: The StarTech.com StarTech SATA to USB Adapter ($9.90 on Amazon as of 2026-10-24 22:12 UTC): Bus-powered over USB-A: no wall adapter or power brick to carry; main trade-off: 2.5in drives only: 3.5in HDDs are explicitly unsupported.

$9.90 on Amazon, checked (price may vary)

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-24. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Bus-powered over USB-A: no wall adapter or power brick to carry
  • ✓ UASP support adds up to 70% over standard USB 5Gbps per StarTech
  • ✓ Zero driver install, OS-independent: plug in and the drive mounts
  • ✓ Cable form factor packs flat in a laptop bag, no enclosure needed

Cons

  • ✗ 2.5in drives only: 3.5in HDDs are explicitly unsupported
  • ✗ No enclosure or shell, so the bare drive sits exposed while connected
  • ✗ USB-A host connector: USB-C machines need a separate adapter
  • ✗ UASP speed gain requires a host that supports it, not guaranteed

Manufacturer description

QUICKLY ACCESS A 2.5" SATA SSD OR HDD: Connect to a 2.5in SATA SSD (solid state drive) or HDD (hard disk drive) to add storage, perform backups, create disk images, recover data, and transfer content to your laptop; Not Compatible with 3.5in drives COMPATIBILITY: This bus-powered adapter is compatible with 2.5in drives; 3.5in drives require a dedicated power connection; For an adapter that supports 3.5in drives, please see our USB312SAT3 FAST TRANSFER SPEEDS: The SATA to USB adapter supports USB 5Gbps data transfer speeds over USB-A, plus you can experience transfer speeds up to 70% faster…

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SpecPicks Verdict

SpecPicks scored StarTech.com StarTech SATA to USB Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the storage adapters category. StarTech.com's storage adapters lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for storage adapters of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does this work with 3.5 inch desktop hard drives?

No. StarTech lists the USB3S2SAT3CB as 2.5in only, because it is bus-powered. A 3.5in drive needs a dedicated power connection; StarTech points to the USB312SAT3 model for that.

Do I need to install drivers or software?

No. The adapter is driver-free and OS-independent, so it is plug and play. Connect the drive to a USB-A host and it mounts using the operating system's built-in storage support.

How fast is it in practice?

It supports USB 5Gbps over USB-A. If your computer also supports UASP, StarTech rates transfers up to 70 percent faster than conventional USB 5Gbps. Real throughput is capped by the drive itself.

Does it work with SSDs as well as spinning hard drives?

Yes. It connects to either a 2.5in SATA SSD or a 2.5in SATA hard disk drive, which makes it useful for cloning a laptop HDD onto a replacement SSD.

Does it need an external power supply?

No. It draws power from the USB port, so there is no separate power adapter to carry. That is also why it is limited to 2.5in drives, which run within USB bus power limits.

Key Features

  • QUICKLY ACCESS A 2.5" SATA SSD OR HDD: Connect to a 2.5in SATA SSD (solid state drive) or HDD (hard disk drive) to add storage, perform backups, create disk images, recover data, and transfer content to your laptop; Not Compatible with 3.5in drives
  • COMPATIBILITY: This bus-powered adapter is compatible with 2.5in drives; 3.5in drives require a dedicated power connection; For an adapter that supports 3.5in drives, please see our USB312SAT3
  • FAST TRANSFER SPEEDS: The SATA to USB adapter supports USB 5Gbps data transfer speeds over USB-A, plus you can experience transfer speeds up to 70% faster than conventional USB 5Gbps when connected to a computer that also supports UASP
  • CONNECT FROM ANYWHERE: The hard drive USB adapter cable is a portable solution that tucks away nicely in a laptop bag with no external power required
  • SAVE TIME: The hard drive transfer cable lets you conveniently swap between drives with no need to install the drive inside an enclosure, just plug and play into a USB-A host system; No driver-install required; OS-Independent

Full Specifications

SizeUSB-A (3.0) | 2.5"
BrandStarTech.com
ColorBlack
ModelUSB3S2SAT3CB
Warranty2 Year
UnitCount1
ReleaseDate2018-08-01T00:00:01Z
ManufacturerStarTech.com
IsAdultProductfalse
ItemPartNumberUSB3S2SAT3CB

Hardware benchmark data

Ready to buy?

StarTech SATA to USB Adapter, USB 5Gbps, 2.5in SATA III (USB3S2SAT3CB) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $9.90

*Price sourced from Amazon.com. Last updated 2026-10-24. Price and availability subject to change.

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StarTech SATA to USB Adapter, USB 5Gbps, 2.5in SATA III (USB3S2SAT3CB)
$9.90
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