- Four or eight USB 3.0 ports
- Four independent USB 3.0 host controllers
- 900 mA/1500 mA max. per port configurable via jumper settings
- Compliant with USB 3.0 Rev.1.0 and Intel xHCI Rev.1.0
- PCI Express x4 interface
- Operating temperature from 0˚C to 70°C
- Supports Windows® 7/10
- Supports each port’s power on/off via software settings
Axiomtek AX92321 4-port/8-port USB 3.0 PCI Express Card


The Axiomtek AX92321 has two versions – 4-port or 8-port – for users to choose from for various applications. The AX92321 can be configured to support maximum output to supply stable power for various external USB devices. The AX92321 also support power on/off control for each port via software settings. This USB 3.0 PCI Express card is able to operate under a standard operating temperature range of 0°C to 70°C, allowing it to be used in harsh environments for vision and factory automation applications.
Bus Type | PCI Express x4 Gen2 |
Connector | 4 x USB 3.0 type A connector (AX92321-4U) 8 x USB 3.0 type A connector (AX92321-8U) |
Power Connector | 4-pin Molex connector, 6-pin ATX power connector |
Power Requirements | Power from PCIe slot (total power max. 20W USB power output) 2.1A@ +12V, 0.8A @ +3.3V, Power from ATX power connector 5A @ +12V or 2.5A @ +24V, 0.8A @ +3.3V (from PCIe slot), Power from 4P Molex power connector. 5A @ +12V, 0.8A @ +3.3V (from PCIe slot) |
Operating Temperature | 0°C to +70°C (+32°F to +158°F) |
Relative Humidity | 10% to 95% RH, non-condensing |
Dimensions | 168 x 107 mm |
Certifications | CE |
Software | Each port’s power on/off is controlled by software |
OS | Windows® 7, Windows® 10 (32/64bit) |