The Drivers for the ASMedia USB eXtensible Host Controller (ASM3142) is for Windows 10, 8.1, 8 & 7. This package below can be installed on both 64bit x64 and 32bit x86 systems. The package will install both an onboard USB controller and a PCI expansion card with the ASMedia ASM 3142 chipset.
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PCI\VEN_1B21&DEV_1040
PCI\VEN_1B21&DEV_1041
PCI\VEN_1B21&DEV_1042
PCI\VEN_1B21&DEV_1142
PCI\VEN_1B21&DEV_1240
PCI\VEN_1B21&DEV_1241
PCI\VEN_1B21&DEV_1242
PCI\VEN_1B21&DEV_1343
PCI\VEN_1B21&DEV_2142 - this device is supported only in Windows XP, Vista and Windows 7!
USB\ASMEDIAROOT_Hub&VID1B21&PID1040&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1041&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1042&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1142&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1240&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1241&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1242&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID1343&VER0001001600410003
USB\ASMEDIAROOT_Hub&VID1B21&PID2142&VER0001001600410003
USB\ASMEDIAUSBD_Hub
USB\ASMEDIAUSBD_HubSS