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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

  • TypePCI Express to USB Card
  • External USB Ports2x USB Ports
  • External Ports2 x USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal Ports1 x SATA Power (15 pin) Plug
  • StandardUSB 3.0
  • Data Transfer RateUp to 5.0 Gbps

Model SATA - Etron 2 Ext

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandStarTech.com
ModelPEXUSB3S23
TypePCI Express to USB Card
External USB Ports2x USB Ports
External Ports2 x USB 3.0 A (9 pin; SuperSpeed) Female
Internal Ports1 x SATA Power (15 pin) Plug
StandardUSB 3.0
Data Transfer RateUp to 5.0 Gbps
Operating Systems SupportedWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64)
Windows Server 2008 R2 , 2003 (32/64)
Specifications1 x PCI Express x1 Male
FeaturesProvides two external USB 3.0 connections
Supports data rates up to 5 Gbps
Compliant with PCI Express 2.0 specifications
Optional SATA power connector provides up to 900mA per USB port
Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications
Backward compatible with USB 2.0 and USB 1.0/1.1 devices
Includes a Low Profile/half-height installation bracket
Add two USB 3.0 ports to your desktop computer through a PCI Express slot
Compatible with HP Pro 6300 / Lenovo ThinkCentre M93p
2 Port PCIe SuperSpeed USB 3.0 Card Adapter / 2Port USB 3.0 Controller Card
USB 3.0 PCIe
Weight0.3
Package Contents1 x PCI Express USB 3.0 card
1 x Low Profile Bracket
1 x Driver CD
1 x Instruction Manual
Shipping weight0.13 kg
Package size170 × 140 × 30 mm

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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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