4/29/2017 new driver models for direct download:949
A4tech Rfkbs-21 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Rfkbs-21
Certifications for A4tech Rfkbs-21
5 stars for A4tech Rfkbs-21 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 4/29/2017 Updates

All drivers on are updated on daily basis.

However, a new version of A4tech Rfkbs-21 might have been uploaded since our last site update.

A4tech Rfkbs-21 Driver Download

Windows Compatibility for A4tech Rfkbs-21 driver

A4tech Rfkbs-21 Driver Details:

A4tech Rfkbs-21 File Name:

A4tech Rfkbs-21 Driver Version: 637C4

A4tech Rfkbs-21 ZIP Size: 118.kb

Manufacturer: A4tech

A4tech Rfkbs-21 was fully scanned at: 4/26/2017
Scan Status: driver download scanOK

A4tech Rfkbs-21 special revision for: Windows XP Media Center Edition 2004 64 bit, Windows XP Home Edition N 32 bit, Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0) 64 bit, Windows XP Media Center Edition 32 bit, Windows XP Media Center Edition 64 bit, Windows 7 Ultimate 32 bit, Windows Vista Home Premium 32 bit, Windows XP Home Edition, for home desktops and laptops 64 bit, Windows 8 Enterprise 64 bit, Windows Vista Home Basic 32 bit, Windows Vista Business 32 bit, Windows 10 64 bit, Windows XP Media Center Edition 2003 64 bit, Windows RT 64 bit

A4tech Rfkbs-21 Download Stats:

Driver Uploaded: 2/18/2017

Direct Downloads: 607
Most Recent Download: 4/27/2017
Managed Downloads: 4309
Most Recent Download: 4/27/2017
Download Mirrors: 5
Current Delay: 11 Seconds
Driver License: Free

Direct Download Success Stats:

Reports Issued By 501/607 Users

Success Reported By 102/501 Users

Driver Download Score73/100

Driver Installation Score68/100

Overall preformance Score73/100

A4tech Rfkbs-21 44 Thumbs Up44Thumbs
A4tech Rfkbs-21 10 Thumbs Down10Thumbs
A4tech Rfkbs-21 driver direct download was reported as adequate by a large percentage of our reporters, so it should be good to download and install.

Installation Manager Success Stats:

Reports Issued By 4183/4309 Users

Success Reported By 3880/4183 Users

Driver Download Score97/100

Driver Installation Score84/100

Overall preformance Score81/100

A4tech Rfkbs-21 3668 Thumbs Up3668Thumbs
A4tech Rfkbs-21 72 Thumbs Down72Thumbs
A4tech Rfkbs-21 driver installation manager was reported as very satisfying by a large percentage of our reporters, so it is recommended to download and install.


1. Direct Download

Select your OS and press "Download".

This option requires basic OS understanding.
Select Your Operating System, download zipped files, and then proceed to
manually install them.
Recommended if A4tech Rfkbs-21 is the only driver on your PC you wish to update.


2. Driver Installation Manager

This option requires no OS understanding.
Automatically scans your PC for the specific required version of A4tech Rfkbs-21 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Rfkbs-21, or the driver installation manager, take a few minutes to send us a report:
* Only registered users can upload a report.

Don’t have a password?
Please register, and get one.

Other drivers most commonly associated with A4tech Rfkbs-21 problems:

A4tech Rfkbs-21 may sometimes be at fault for other drivers ceasing to function

These are the driver scans of 2 of our recent wiki members*

*Scans were performed on computers suffering from A4tech Rfkbs-21 disfunctions.

Scan performed on 4/29/2017, Computer: Lenovo ThinkPad X200s

Outdated or Corrupted drivers:9/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 82801FB/FBM USB universeller Hostcontroller - 2658Corrupted By A4tech Rfkbs-21
Mice And Touchpads
ELECOM HID mouseUp To Date and Functioning
Usb Devices
Hewlett-Packard HP LEDM DriverCorrupted By A4tech Rfkbs-21
HTC Android PhoneCorrupted By A4tech Rfkbs-21
Microsoft Iomega Zip 250 (USB)Up To Date and Functioning
Sound Cards And Media Devices
NVIDIA NVIDIA GeForce GT 635MCorrupted By A4tech Rfkbs-21
Toshiba TOSHIBA USB ISDB-T and ISDB-S TV Tuner(x64)Up To Date and Functioning
Network Cards
Qualcomm Atheros Qualcomm Atheros AR9285 Wireless Network AdapterUp To Date and Functioning
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Advanced Micro Devices AMD SATA Controller (IDE Mode)Up To Date and Functioning
Nokia Nokia 5230 USB PhonetUp To Date and Functioning
NEC Texas Instruments PCIxx12 Cardbus ControllerUp To Date and Functioning
Microsoft Xbox 360 Controller for WindowsCorrupted By A4tech Rfkbs-21
Cameras, Webcams And Scanners
USB2.0 PC CAMERA Periferica video USBCorrupted By A4tech Rfkbs-21
Video Cards
Intel Video ControllerUp To Date and Functioning
Input Devices
Hewlett-Packard HP Link-5 micro dongleCorrupted By A4tech Rfkbs-21
Port Devices
PROLiNK PROLiNK UI AT Interface (COM7)Corrupted By A4tech Rfkbs-21
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Rfkbs-21

Scan performed on 4/29/2017, Computer: Alienware Aurora M9700

Outdated or Corrupted drivers:10/18

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 5520/5500/X58 I/O Hub PCI Express Root Port 3 - 340ACorrupted By A4tech Rfkbs-21
Mice And Touchpads
Alps Alps Pointing-deviceOutdated
Usb Devices
Motorola Motorola W385Outdated
Sound Cards And Media Devices
IC Plus Unimodem Half-Duplex Audio DeviceUp To Date and Functioning
Hauppauge Hauppauge WinTV HVR-1200 (Model 71xxx, Hybrid DVB-T, No FP)Corrupted By A4tech Rfkbs-21
Network Cards
Intel(R) Centrino(R) Wireless-N 1000Corrupted By A4tech Rfkbs-21
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel Intel(r) 82801AA Bus Master IDE ControllerCorrupted By A4tech Rfkbs-21
Texas Instruments Texas Instruments PCI-4520 CardBus ControllerUp To Date and Functioning
NEC Texas Instruments PCIxx21/x515 Cardbus ControllerOutdated
ACEECA Palm HandheldOutdated
O2Micro Standard-CardBus-ControllerUp To Date and Functioning
Cameras, Webcams And Scanners
Canon Canon MP560 serUp To Date and Functioning
Video Cards
Intel(R) 82945G Express Chipset Family (Microsoft Corporation - WDDM 1.0)Corrupted By A4tech Rfkbs-21
Input Devices
Microsoft Microsoft Hardware USB MouseUp To Date and Functioning
Port Devices
D-Link USB Single PortUp To Date and Functioning
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Rfkbs-21 V7229812/13/201412/29/2016a4tech_rfkbs-21-v72298.exe64kbASUS 1005HA, Packard Bell IMEDIA MC 8236, Fujitsu FMVNX95SD, IBM 9210WLV, Sony VGN-FE17SP, Sony VGC-JS51B_P, RIOWORKS HDAMB, IBM ThinkPad X41, and more.
A4tech Rfkbs-21 81.13262/15/201512/27/2016a4tech_rfkbs-21-81.1326.exe198kbDK Digital EXentia, Sony VGN-TZ27GN_B, IBM 26476AG, Acer Aspire 5735Z, and more.
A4tech Rfkbs-21 2291.1311/24/201412/27/2016a4tech_rfkbs-21-2291.13.exe39kbToshiba Satego P100, IBM IBM System x3400 M3 Server -[7379AC1, Compaq DT203A-ABF S6400FR FR410, Fujitsu FMVNB70E, Lenovo ThinkPad X130e, Lenovo 6458V35, Lenovo ThinkPad X220, HP P6570jp, and more.
A4tech Rfkbs-21 2.11.124811/2/201412/28/2016fnmxjy-2.11.1248.exe205kbIBM 8184LG1, NEC PC-VN470GS6R, Acer Aspire 3660, Panasonic CF-53AAC01FE, Toshiba SATELLITE C870-162, Gigabyte Z97X-UD5H, LG R510-S.AP87K, HP 610-1130uk, Lenovo 9174Y1A, Sony VGN-CS325J, and more.
A4tech Rfkbs-21 I82321.12/27/201512/30/2016a4tech_rfkbs-21-i82321.1.exe182kbGateway PROFILE3, Fujitsu FMVFE90DBY, Lenovo ThinkPad Edge E320, Toshiba Dynabook T552/36FWK, Fujitsu FMVD94G041, Compaq NQ905AA-ABU CQ5012UK, Sony VGN-NS31MT_S, Sony PCV-RS216, Lenovo 20AL009CUS, HP 220-1100t, Sony VGN-SR28_Q, and more.
A4tech Rfkbs-21 K221.12.1010/1/201412/29/2016p-k221.12.10.exe149kbHP CQ2800EEm, Sony VGN-AR91PS, HP HP Pavilion dv 9500 Notebook PC, Toshiba SATELLITE PRO C850-19G, Intel W660DI, IBM IBM System x3350 -[4193E5G, SAMSUN 770Z5E/780Z5E, HP PN133AA-ABU, Gateway E-5200, and more.
A4tech Rfkbs-21 7324411/1/201412/27/2016a4tech_rfkbs-21-73244.exe140kbASUS 1001PQ, Fujitsu FMVWMS277, HP HP Compaq nw8000, Toshiba Dynabook TX/77MWHYD, Intel WIV68105-0268, Toshiba Dynabook TX/77MWHYD, MSI GT60 2OJWS, Compaq EG217AA-ABG SR1699AN AN540, Acer Aspire 1520, Toshiba SATELLITE C870-14G, LG E500-S.AP22R1, ICP / IEi KINO-690AM2, Supermicro X7DBP, and more.
A4tech Rfkbs-21 47310/6/201412/29/2016a4tech_rfkbs-21-473.exe197kbNEC NEC POWERMATE X8520, Sony VGN-NW250D, HP Db234a-abg 504a, Sony SVE1411E1RB, BYTSPD ByteSpeed LLC, Sony VGN-NS92XS, Sony VGN-UX90PS, and more.
A4tech Rfkbs-21 482.111/28/201412/29/2016-482.1.exe138kbIBM NetVista personal computer, MSI MS-9899, Toshiba SATELLITE C850-A821, WIPRO WIV37455-1080, ASUS P5GD2-TVM, HP Hp elite hpe410f, HP HP PAVILION DV9000 KP950EA#ABF, Acer TM7520, and more.
A4tech Rfkbs-21 704329/1/201412/27/2016a4tech_rfkbs-21-70432.exe87kbFujitsu CLW8GAG1D, Lenovo ThinkPad L412, HP KZ692AA-ABU m9373.UK, Sony VGN-NS240D, Toshiba NB100/HF, Compaq Presario 7132EA 470019-261, and more.
A4tech Rfkbs-21 701.13611/27/201412/30/2016a4tech_rfkbs-21-701.136.exe132kbSony VGN-TZ35AN, Dell OptiPlex G1 350Mbr+, Lenovo ThinkPad L530, Sony PCG-GR214EP, Fujitsu FMVCE80T7, Gateway DX441B, IBM 26523CU, Sony VGN-FW56E, Dell WN09, Sony VGN-TZ3RMN_N, and more.
A4tech Rfkbs-21 2266810/14/201412/28/2016a4tech_rfkbs-21-22668.exe158kbAcer Veriton Z430G, Open Labs Neko/Miko, HP HP Compaq 6715s, HP RZ412AA-ABZ, Panasonic CF-19TH187QW, Compaq RR472AA-ABF SR2102FR, Aquarius Aquarius Std, Pro, Elt, HP HP Compaq nx6110, and more.
A4tech Rfkbs-21 336749/10/201412/28/2016a4tech_rfkbs-21-33674.exe62kbPanasonic CF-53JAWZYDE, Acer Veriton S670, HP HP Compaq 8710p, HP HP Pavilion dv5000 ES248EA#ABD, Packard Bell IMEDIA MC 8236, NEC PC-VN750RG6B, HCL Infosystems IGL 1701CT, Itautec Infoway w7730, Lanix LANIX CORP 4080, Seneca Pro354493, and more.

Please Note: There are particular operating systems known to have problems with A4tech Rfkbs-21:
  • Windows Vista Home Premium
  • Windows 7 Home Basic
  • Windows 7 Starter
  • Windows XP Media Center Edition 2004
  • Windows Vista Starter
  • Windows XP Media Center Edition
  • Windows Vista Ultimate
  • Windows 7 Home Premium
  • Windows Vista Home Basic
  • Windows XP Media Center Edition 2005
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Rfkbs-21 model.
Laptop A4tech Rfkbs-21Tablet A4tech Rfkbs-21Download A4tech Rfkbs-21Upgrade A4tech Rfkbs-21Update A4tech Rfkbs-212017 A4tech Rfkbs-21Free A4tech Rfkbs-21Data A4tech Rfkbs-21Info A4tech Rfkbs-21Help A4tech Rfkbs-21Guide A4tech Rfkbs-21Comments A4tech Rfkbs-21Windows 10 A4tech Rfkbs-21Vista A4tech Rfkbs-21Windows 7 A4tech Rfkbs-21Install A4tech Rfkbs-21