We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black plastic dual-bay SATA dock with USB 3.0 cable and power adapter

STARTECH

STARTECH SDOCKU33BV USB 3.0 SATA III Dual Drive Dock 2.5/3.5

SKU CH-H55N-J72V0 MPN SDOCKU33BV

Dual-bay dock connects two 2.5" or 3.5" SATA drives via USB 3.0 with UASP 1.0 support

  • ColorBlack
  • Size2.5" & 3.5"
  • TypeDock
  • AC AdapterYes
  • MaterialPlastic
  • Internal InterfaceSATA I/II/III

Size USB 3.0

  • Dual 2.5″ and 3.5″ SATA drive support for flexible storage access
  • UASP over USB 3.0 delivers 70% faster transfers than standard USB 3.0
  • Works with SATA I, II and III drives without extra drivers
  • Universal power adapter included for worldwide compatibility
  • Compact black dock measures 2.00″ × 3.60″ × 5.50″ and weighs 24.90 oz

Dual SATA Dock for 2.5 and 3.5 Inch Drives

This docking station accepts both 2.5in and 3.5in SATA hard drives and solid-state drives. It connects to a host over USB 3.0 with UASP support for faster data transfers. The unit is OS independent and requires no drivers or software installation. It suits technicians and home users who need quick, temporary access to bare drives.

USB 3.0 Interface Limits at 5 Gbps

The external link runs at USB 3.0 speeds of 5 Gbps and falls back to USB 2.0 at 480 Mbps or USB 1.1 at 1.5 Mbps. UASP support reduces protocol overhead compared with traditional USB 3.0 bulk endpoints. SATA I, II and III drives are all accepted, but the USB 3.0 bus caps the maximum throughput regardless of the drive’s native SATA revision.

Tool-Free Insertion with Universal Power

Drives slide into the top-loading slot without screws or trays. A universal power adapter with NA, EU, UK and AU plugs is included alongside a USB 3.0 cable. The dock has no fan, so sustained heavy workloads on high-capacity mechanical drives may run warmer than in an actively cooled enclosure.

Highlights

  • Dual 2.5″ and 3.5″ SATA drive support for flexible storage access
  • UASP over USB 3.0 delivers 70% faster transfers than standard USB 3.0
  • Works with SATA I, II and III drives without extra drivers
  • Universal power adapter included for worldwide compatibility
  • Compact black dock measures 2.00″ × 3.60″ × 5.50″ and weighs 24.90 oz

Specifications

BrandStarTech.com
ModelSDOCKU33BV
ColorBlack
Size2.5" & 3.5"
TypeDock
AC AdapterYes
MaterialPlastic
Internal InterfaceSATA I/II/III
External Interface1 x USB Type-B (9 pin) USB 3.0 Female
HDD Count SupportedDual HDD
Number of Bay1
FanNo
PowerUniversal Power Adapter
Operating Systems SupportedOS independent; No software or drivers required
FeaturesSupports 2.5in and 3.5in form factor SATA hard drives (HDD) and solid state drives (SSD)
UASP Support (Attached SCSI Protocol Specification Revision 1.0)
Compatible with USB 3.0/2.0/1.1 (5 Gbps / 480 Mbps / 1.5 Mbps)
Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives
Plug-and-Play and Hot-Swap compatible
Dimensions2.00" x 3.60" x 5.50"
Weight24.90 oz.
Package Contents1 x USB 3.0 SATA hard drive docking station
1 x USB 3.0 Cable
1 x Universal Power Adapter (NA/EU/UK) and AU in Australia
1 x Instruction Manual
Shipping weight0.73 kg
Package size173 × 163 × 91 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I choose the single-bay or dual-bay version of this dock?

This model has one bay that accepts either a 2.5in or 3.5in SATA drive; a second drive can be swapped in when needed.

What does the 70 % faster claim mean when I connect a SATA III SSD to my laptop?

UASP support reduces protocol overhead so sustained transfers approach the USB 3.0 5 Gbps limit instead of the lower bulk-endpoint throughput.

Does the USB 3.0 Type-B port cap the speed of a 6 Gbps SATA III drive?

Yes, the USB 3.0 5 Gbps link is the bottleneck; the drive will run at up to 5 Gbps rather than its native 6 Gbps.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.