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Green circuit board with metal bracket and two blue USB ports

STARTECH

STARTECH PEXUSB3S23 2 Port USB 3.0 PCIe Expansion Card

SKU CH-A56K-DBBEC MPN PEXUSB3S23

Adds two USB 3.0 ports via a PCI Express slot with optional SATA power for 900mA per port and includes a low-profile bracket

  • External USB ports2x USB Ports
  • External connectors2 x USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal ports1 x SATA Power (15 pin) Plug
  • Supported standardsUSB 3.0
  • Transfer speedUp to 5.0 Gbit/s
  • Supported operating systemsWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64) Win

Model SATA - Etron 2 Ext

  • Add two USB 3.0 ports via a PCI Express slot
  • SuperSpeed data rates up to 5.0 Gbps
  • Optional SATA power connector delivers up to 900mA per port
  • Includes a low-profile bracket for compact desktop cases
  • Supports Windows XP, Vista, 7, 8 and Server 2003, 2008 R2

Two USB 3.0 Ports via PCIe

This StarTech.com PEXUSB3S23 expansion card adds two external USB 3.0 Type-A ports to a desktop computer through an available PCI Express x1 slot. The card supports SuperSpeed data rates up to 5.0 Gbps and includes an optional 15-pin SATA power connector that can supply up to 900mA per port for power-hungry peripherals. A low-profile bracket is supplied for installation in compact chassis.

Upgrade from USB 2.0 or Missing Ports

The card replaces older USB 2.0 add-in cards or fills the gap on motherboards that lack native USB 3.0 headers, delivering a tenfold increase in theoretical bandwidth to 5 Gbps. The jump is worthwhile when you regularly move large files to external drives, use high-speed docks, or need the higher current available from the SATA-powered ports for charging devices.

Check Slot, OS and Power Cable

Verify that your system has a free PCI Express x1 slot (or larger) and that you are running a supported Windows version such as Windows 7, 8, Vista, XP, Server 2003 or Server 2008 R2 in either 32-bit or 64-bit editions. Ensure a spare SATA power lead from the power supply can reach the card if you intend to use the optional 900mA per-port power feature.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 68% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameStarTech.com
Model namePEXUSB3S23
Product typePCI Express to USB Card
Performance
Transfer speedUp to 5.0 Gbit/s
Connectivity
Supported standardsUSB 3.0
Ports & slots
External USB ports2x USB Ports
External connectors2 x USB 3.0 A (9 pin; SuperSpeed) Female
Internal ports1 x SATA Power (15 pin) Plug
Size & build
Shipping weight0.13 kg
Package size170 × 140 × 30 mm
Compatibility
Supported operating systemsWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64)
Windows Server 2008 R2 , 2003 (32/64)
In the box
In the box1 x PCI Express USB 3.0 card
1 x Low Profile Bracket
1 x Driver CD
1 x Instruction Manual

Other versions of this model

3 more in the same range

Questions about this item

Does the PEXUSB3S23 fit a low-profile PCIe x1 slot?

Yes, the card includes a low-profile bracket and uses a PCI Express x1 male edge connector for half-height chassis.

How do I connect the optional SATA power plug on the PEXUSB3S23?

Attach a standard 15-pin SATA power cable from the PSU to the card's internal connector before closing the case; skipping this step limits each USB port to less than 900 mA.

When should I replace the driver CD supplied with the PEXUSB3S23?

The CD contains drivers for Windows XP through 8 and Server 2003/2008; download updated drivers from the manufacturer if you move to a newer OS.

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