4/24/2017 new driver models for direct download:679
A4tech Rfkb-21 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Rfkb-21
Certifications for A4tech Rfkb-21
5 stars for A4tech Rfkb-21 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 4/24/2017 Updates

All drivers on are updated on daily basis.

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

A4tech Rfkb-21 Driver Download

Windows Compatibility for A4tech Rfkb-21 driver

A4tech Rfkb-21 Driver Details:

A4tech Rfkb-21 File Name:

A4tech Rfkb-21 Driver Version: 931kgDS0

A4tech Rfkb-21 ZIP Size: 121.kb

Manufacturer: A4tech

A4tech Rfkb-21 was fully scanned at: 4/22/2017
Scan Status: driver download scanOK

A4tech Rfkb-21 special revision for: Windows 8 Pro 64 bit, Windows 7 Professional 32 bit, Windows Vista Home Premium 64 bit, Windows 7 Service Pack 1 (Microsoft Windows NT) 32 bit, Windows XP Tablet PC Edition 32 bit, Windows 7 Ultimate 64 bit, Windows 7 Enterprise (Microsoft Windows NT) 64 bit

A4tech Rfkb-21 Download Stats:

Driver Uploaded: 3/17/2017

Direct Downloads: 341
Most Recent Download: 4/23/2017
Managed Downloads: 3062
Most Recent Download: 4/22/2017
Download Mirrors: 5
Current Delay: 17 Seconds
Driver License: Free

Direct Download Success Stats:

Reports Issued By 264/341 Users

Success Reported By 39/264 Users

Driver Download Score67/100

Driver Installation Score70/100

Overall preformance Score60/100

A4tech Rfkb-21 8 Thumbs Up8Thumbs
A4tech Rfkb-21 1 Thumbs Down1Thumbs
A4tech Rfkb-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 2985/3062 Users

Success Reported By 2778/2985 Users

Driver Download Score86/100

Driver Installation Score88/100

Overall preformance Score89/100

A4tech Rfkb-21 2635 Thumbs Up2635Thumbs
A4tech Rfkb-21 57 Thumbs Down57Thumbs
A4tech Rfkb-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 Rfkb-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 Rfkb-21 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Rfkb-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 Rfkb-21 problems:

A4tech Rfkb-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 Rfkb-21 disfunctions.

Scan performed on 4/24/2017, Computer: HP H9-1161ez

Outdated or Corrupted drivers:7/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 7500/5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers - 3422Outdated
Mice And Touchpads
Logitech HID-compliant mouseUp To Date and Functioning
Usb Devices
Logitech USB Composite DeviceUp To Date and Functioning
Logitech Logitech Download AssistantOutdated
Microsoft Intel(R) 82801BA/BAM USB universeller Hostcontroller - 2444Up To Date and Functioning
Sound Cards And Media Devices
Analog Devices SoundMAX Integrated Digital AudioCorrupted By A4tech Rfkb-21
Realtek Periferica audio su bus High Definition AudioCorrupted By A4tech Rfkb-21
Network Cards
TP-LINK TP-LINK Wireless USB AdapterUp To Date and Functioning
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
Advanced Micro Devices Controller standard PCI IDEUp To Date and Functioning
ClockworkMod CDC SerialUp To Date and Functioning
Intel Port racine express PCI Intel(R) 82801FB/FBM PCI -2662Up To Date and Functioning
Intel(R) 82810 Graphics Controller (Microsoft Corporation)Outdated
Cameras, Webcams And Scanners
Canon Canon MP600ROutdated
Video Cards
ATI RADEON X300 SeriesUp To Date and Functioning
Input Devices
Lenovo ThinkPad USB Travel Mouse (HID)Up To Date and Functioning
Port Devices
hspa Modem Application1 port (COM4)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 4/24/2017, Computer: AMD & ATI P030A

Outdated or Corrupted drivers:9/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) Xeon(R) E5 v2/Core i7 Integrated Memory Controller 1 Channel 0-3 ERROR Registers 2 - 0EB6Corrupted By A4tech Rfkb-21
Mice And Touchpads
Synaptics PS/2 Compatible MouseCorrupted By A4tech Rfkb-21
Usb Devices
SusTeen Sony Ericsson Z310Outdated
Sony Ericsson Sony Ericsson Device 0016 USB WMC Device Management (COM14)Outdated
Hewlett-Packard HP Photosmart C7200 (DOT4USB)Up To Date and Functioning
Sound Cards And Media Devices
VIA Vinyl AC'97 Codec Combo Driver (WDM)Up To Date and Functioning
NVIDIA NVIDIA GeForce GT 550MCorrupted By A4tech Rfkb-21
Network Cards
Belkin Belkin Enhanced Wireless USB AdapterCorrupted By A4tech Rfkb-21
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
USB Compliance USB Mass Storage DeviceUp To Date and Functioning
Nokia Nokia 5230 USB OBEXUp To Date and Functioning
Unibrain Texas Instruments 1394 OHCI Compliant Host ControllerUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 1Outdated
ACEECA Palm HandheldOutdated
Cameras, Webcams And Scanners
Intel Canon EOS 500DUp To Date and Functioning
Video Cards
Intel Standard VGA Graphics AdapterUp To Date and Functioning
Input Devices
Logitech USB Human Interface DeviceUp To Date and Functioning
Port Devices
Sony Ericsson Sony Ericsson 750 USB WMC OBEX Interface (COM6)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Corrupted By A4tech Rfkb-21
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Rfkb-21 2.1290412/7/201412/30/2016a4tech_rfkb-21-2.12904.exe92kbDell Inspiron N5040, Compaq KJ172AA-AB4 SR5272CF, HP Compaq nx9040, Sony VPCM126AA, Gigabyte H61M-USB3-B3, Panasonic CF-R8EWBAAP, ECS 332, LG A510-U.AESGE2, Gateway M-7332H, IBM IBM eServer 206m -[848510U, and more.
A4tech Rfkb-21 2.1082.149/25/201412/30/2016a4tech_rfkb-21-2.1082.14.exe116kbT-Systems T-Systems PC P4PE, Fujitsu PRIMERGY RX200 S8, Sony VGN-FS755FP, Lenovo 6075Y74, NEC PC-LL550KG1J, HP HP Compaq nc4010, HP GU631AA-UUW, and more.
A4tech Rfkb-21 31.17729/26/201412/29/2016a4tech_rfkb-21-31.1772.exe47kbToshiba SATELLITE C850-A819, HASEE U147, Toshiba Dynabook T553/37JWB, Dell Latitude 131L, Packard Bell EasyNote TM01, Gateway FX4710-UB802A, and more.
A4tech Rfkb-21 L32232.12/17/201512/30/2016a4tech_rfkb-21-l32232.1.exe108kbFujitsu FMVXD4VR2Z, CDM K9A2VM-FD R01, Lenovo ThinkPad X220 Tablet, LG R590-PR70K, ARLT Computer Produkte Mr. Gamer 7-11 R2, and more.
A4tech Rfkb-21 G636802/13/201512/28/2016a4tech_rfkb-21-g63680.exe102kbZoostorm 7010-0246A, Lenovo 1S16800336100W2, LG R580-UP87K, Buympc TRANSPORT T2500 154 E, Compaq DT260A-ABU S5210UK GB340, Fujitsu FMVL18B, HP Presario C500, and more.
A4tech Rfkb-21 2002312/18/201412/27/2016a4tech_rfkb-21-20023.exe103kbHP D5468AT-ABA GX768AA, Extracomputer D2312-C2, HP HP Compaq dc5100 SFF, Compaq DB266A-AB1 6215KR KO910, Packard Bell ISTART 9112, IBM 1871Y16, Itautec Infoway w7730, Fujitsu FMV8NU1LC5, ICP / IEi KINO-945GSE, HP VN465AA-UUW HPE-010sc, Sony VGN-TZ17TN_N, Clevo W240BL_W250BZ_W270BZQ, WIPRO WSG48355W7-0023, and more.
A4tech Rfkb-21 2227310/5/201412/29/2016pibdzj-22273.exe36kbHP 600-1390, Extracomputer D3230-B1, HP HP Compaq nc4200, Packard Bell IXtreme J8038, IBM ThinkCentre A51, IBM ThinkPad T40, ASUS BA5190, Compaq GU587AA-ABH SR5235NL, and more.
A4tech Rfkb-21 V41.108210/10/201412/27/2016a4tech_rfkb-21-v41.1082.exe126kbSony VPCF13S8R, VIA VT8367-8233/5, IBM ThinkPad R52, Compaq GN732AA-ABH SR5135NL, Toshiba Dynabook Qosmio F30/770LS, LG LW70-JJKG, HP PC106A-ABA a610, HP Compaq nx5000, and more.
A4tech Rfkb-21 2.1393310/17/201412/29/2016rxmepcw-2.13933.exe144kbLenovo ThinkStation S20, HP 500-018es, NEC PC-MJ29MLZ2JCSG, M&A E10IS, NEC PC-MY24RAZ75, HP GP G62-A20SY NB, Fujitsu LIFEBOOK NH532, Buympc DES0024C USCG ClientPro 375 G, and more.
A4tech Rfkb-21 99410/23/201412/29/2016a4tech_rfkb-21-994.exe90kbSony VGN-NR270N, Gigabyte EP41-US3L, VIA VT8653-8233, Toshiba Dynabook T552/36HRJ, Fujitsu CELSIUS H265, HP NC684AAR-ABA a6750y, and more.
A4tech Rfkb-21 61.10679/14/201412/27/2016a4tech_rfkb-21-61.1067.exe72kbSAMSUN R509, Acer Aspire 5710Z, HP Rfrb h8-1100z, Sony VGNZ890G, Sony VPCCW21FD, and more.
A4tech Rfkb-21 D7071.1212/8/201412/29/2016a4tech_rfkb-21-d7071.12.exe186kbHP NY584AA-AC4 600-1010b, Toshiba SATELLITE C850-A791, HP PX568AA-ABY, Fujitsu FMVXN2G52, Acer MX4SG-4DL, NEC PC-GV286VZAU, DataLogic MS-N011, and more.
A4tech Rfkb-21 30021.110/25/201412/30/2016a4tech_rfkb-21-30021.1.exe99kbIBM 8213WCM, NEC PC-VL500ED, Compaq RF785AA-ABU SR2029 NA100, LG R580-UAAD6BT, Lenovo 2756AF8, RM Plc RM DESKTOP 201, Panasonic CF-W7DWM07JM, Panasonic CF-N9LWRJDS, Toshiba Dynabook SS LX/190DK, Sony VGN-NS160D, NEC PC-VW970BS, Toshiba SATELLITE C850-A798, Panasonic CF-53AACZYFT, and more.

Please Note: There are particular operating systems known to have problems with A4tech Rfkb-21:
  • Windows 10
  • Windows XP Media Center Edition 2003
  • Windows RT
  • Windows 7 Starter
  • Windows Vista Ultimate
  • Windows Vista Home Basic
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Rfkb-21 model.
Laptop A4tech Rfkb-21Tablet A4tech Rfkb-21Download A4tech Rfkb-21Upgrade A4tech Rfkb-21Update A4tech Rfkb-212017 A4tech Rfkb-21Free A4tech Rfkb-21Data A4tech Rfkb-21Info A4tech Rfkb-21Help A4tech Rfkb-21Guide A4tech Rfkb-21Comments A4tech Rfkb-21Windows 10 A4tech Rfkb-21Vista A4tech Rfkb-21Windows 7 A4tech Rfkb-21Install A4tech Rfkb-21