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Green circuit board with two blue USB ports and a SATA power connector, full-height metal bracket installed

STARTECH

STARTECH PEXUSB3S24 2 Port PCI Express USB 3.0 Expansion Card

SKU CH-QV76-Z93NY MPN PEXUSB3S24

Adds two 5 Gbps USB 3.0 ports with UASP and optional SATA power via a PCI Express x1 slot

  • External USB ports2 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal ports1 - 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
  • Product typePCI Express to USB Card

Model SATA - NEC 2 Ext

  • Adds two USB 3.0 ports for faster peripheral connections
  • UASP support boosts external storage transfer efficiency
  • Optional SATA power delivers up to 900mA per port for power-hungry devices
  • Includes low-profile bracket for compact chassis compatibility
  • PCI Express 2.0 x1 interface provides up to 5.0 Gbps bandwidth

Two USB 3.0 ports with SATA power

This PCI Express x1 add-on card adds two external USB 3.0 Type-A ports to a desktop computer. It draws supplementary power from an internal SATA connector so each port can deliver up to 900 mA for charging or bus-powered devices. A low-profile bracket is included for small-form-factor cases.

Upgrade from USB 2.0 headers

The jump is worthwhile when a motherboard lacks native USB 3.0 connectivity or when existing headers are occupied. UASP support reduces protocol overhead on compatible storage, and the NEC µPD720202 controller is compatible with Windows XP through Windows 8, Windows Server 2003 through 2012, and Linux kernel 2.6.31 or later.

5 Gbps bandwidth shared across two ports

The link comfortably handles external hard drives, flash drives and docking stations at SuperSpeed rates. Cable runs up to 3 metres are supported without signal degradation. Bandwidth is divided when both ports are active simultaneously, so sustained transfers on two high-throughput devices will saturate the single PCI Express 2.0 lane.

How it compares

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

Price $33.99
Pricier than about 55% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameStarTech.com
Model namePEXUSB3S24
Product typePCI Express to USB Card
Performance
Transfer speedUp to 5.0 Gbit/s
Connectivity
Supported standardsUSB 3.0
Ports & slots
External USB ports2 - USB 3.0 A (9 pin; SuperSpeed) Female
Internal ports1 - SATA Power (15 pin) Plug
Size & build
Product dimensions4.7 in × 2.6 in × 0.7 in (H × L × W)
Product weight0.09 lb (0.04 kg)
Shipping weight0.15 kg
Package size173 × 140 × 33 mm
Compatibility
Supported operating systemsWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64)
Windows Server 2012, 2008 R2, 2003(32/64)
Linux 2.6.31 or later
In the box
In the box1 - PCI Express USB 3.0 Card
1 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual

Other versions of this model

3 more in the same range

Questions about this item

Does this card fit a standard-profile or low-profile slot?

The board is a standard-profile PCIe x1 card measuring 4.70 inches by 2.60 inches and a low-profile bracket is included in the box.

Which slot and power connector are used during installation?

Insert the card into any PCI Express x1 slot and optionally attach a SATA 15-pin power plug to deliver up to 900 mA per port.

Will the SATA power connector or the NEC controller need replacement later?

The SATA power plug is a passive cable connection with no wear parts and the NEC µPD720202 controller is soldered on the board, so neither requires scheduled replacement.

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