174c:55aa — ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge
ASMedia Technology Inc.
- Vendor ID
- 174c
- Product ID
- 55aa
- Combined
- 174c:55aa
- Decimal
- 5964:21930
What is this device?
This is the USB identifier for a ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge manufactured by ASMedia Technology Inc.. The vendor ID 174c is registered to ASMedia Technology Inc. with the USB Implementers Forum, and 55aa is the product ID that ASMedia Technology Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge
You can filter directly with lsusb -d 174c:55aa, or get the full descriptor dump with lsusb -v -d 174c:55aa. Kernel messages from dmesg show the same pair as idVendor=174c, idProduct=55aa.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_174C&PID_55AA USB\VID_174C&PID_55AA&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_174C&PID_55AA"
macOS
$ system_profiler SPUSBDataType
ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge:
Product ID: 0x55aa
Vendor ID: 0x174c (ASMedia Technology Inc.)Driver help
Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
174c ASMedia Technology Inc. 55aa ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge