Here is the list of USB\VID_3574&PID_21F4 drivers, you can download & update bluetooth drivers here. we provide driver files 54132_sp48538.exe for download, fix your USB\VID_3574&PID_21F4 driver problems by updating USB\VID_3574&PID_21F4 drivers.
| Device ID Name | USB\VID_3574&PID_21F4 |
| Driver Files List |
54132_sp48538.exe
File Szie: 58.43 Mb OS:XP |
| Driver Files List |
Bluetooth_AZ_BT30_WIN7_32_64_Z6302600.zip
File Szie: 63.27 Mb OS:XP64 |
| Driver Files List |
Bluetooth_Broadcom_6.3.0.3800_W7x86W7x64_A.zip
File Szie: 60.35 Mb OS:XP64 |
| Driver Files List |
E5510-vista-A00-R268068.CAB
File Szie: 157.92 Mb OS:XP |
| Driver Files List |
nb-driver-q1105-win7-bluetooth.zip
File Szie: 299.55 Mb OS:XP64 |