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Green PCIe expansion card with two blue USB ports and a metal bracket

iStarUSA Inc.

iStarUSA Inc. SAGE-PCIE-2U3 PCI to 1394 / USB expansion card 2x USB 5.0 Gbps

SKU CH-CBZY-W601Z MPN SAGE-PCIE-2U3

Adds two USB 3.0 ports at 5.0 Gbps via a PCI slot, supporting Windows XP through 7 on 32-bit and 64-bit systems

  • External USB ports2x USB Ports
  • Transfer speedUp to 5.0 Gbit/s
  • Supported operating systemsWindows XP/Vista/2003 Server/2008 Server /Win7–32bits Window
  • Product typePCI to 1394 / USB Card
  • Key featuresFully compliant with USB 3.0 and xHCI (eXtensible Host Contr
  • Adds two USB 3.0 ports running at 5.0 Gbps
  • Fully compliant with USB 3.0 and xHCI specifications
  • Backward compatible with USB 2.0 and 1.1 devices
  • Includes 1394 interface for legacy FireWire equipment
  • Supported on Windows XP through Win7 in 32-bit and 64-bit versions

PCI expansion card for USB and 1394

The iStarUSA SAGE-PCIE-2U3 adds two USB ports and a 1394 connection to a desktop through a standard PCI slot. It delivers up to 5.0 Gbps transfer rate and remains compliant with USB 3.0 and xHCI specifications. The card supports USB 3.0, 2.0 and 1.1 devices for broad peripheral compatibility. It also supports Serial ATA II Port Multiplier 1.0 specification revision 1.1.

Upgrade from USB 2.0 or missing 1394

This card replaces a system that relies on slower USB 2.0 ports or lacks a 1394 interface entirely. The jump is worth it when external storage or legacy devices need the 5.0 Gbps bandwidth or the 1394 connection. It brings modern host-controller compliance to older platforms that still run Windows XP, Vista, 2003 Server, 2008 Server or Win7 in 32-bit and 64-bit editions.

Limited by PCI bus and legacy OS support

The PCI interface caps real-world throughput below the 5.0 Gbps USB 3.0 ceiling, so sustained transfers will not reach the nominal rate. Driver support ends with the listed Windows versions, leaving newer operating systems without official support. Buyers who need more than two USB ports or require current OS drivers should consider a different solution.

How it compares

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

Price $31.99
Typical for this category: the median of 891 items is $30.99.

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Specifications

Product
Brand nameiStarUSA
Model nameSAGE-PCIE-2U3
Product typePCI to 1394 / USB Card
Performance
Transfer speedUp to 5.0 Gbit/s
Ports & slots
External USB ports2x USB Ports
Size & build
Shipping weight0.07 kg
Package size178 × 122 × 33 mm
Compatibility
Supported operating systemsWindows XP/Vista/2003 Server/2008 Server /Win7–32bits
Windows XP/Vista/2003 Server/2008 Server - 64bits

Questions about this item

Does this SAGE-PCIE-2U3 card fit a standard PCI slot?

The SAGE-PCIE-2U3 is a PCI to 1394/USB card designed for a conventional PCI expansion slot, not PCI Express.

What driver step is often missed when installing this card on Windows 7 64-bit?

After seating the card, install the xHCI driver for USB 3.0 before connecting devices; Windows 7 64-bit does not load it automatically.

How do I keep the two USB 3.0 ports running at 5.0 Gbps over time?

Ensure the host system supplies stable 5 V power to the PCI slot and avoid daisy-chaining unpowered hubs that can throttle the 5.0 Gbps rate.

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