12/7/2019 +1050 new drivers.
A4tech 0k-521 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech 0k-521
Certifications for A4tech 0k-521
5 stars for A4tech 0k-521 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2016
Our main support OS are: Windows 7, Windows 7 64 bit, Windows 7 32 bit, Windows 10, Windows 10 64 bit, Windows 10 32 bit, and Windows 8.

A4tech 0k-521 Driver Download

Windows Compatibility for A4tech 0k-521 driver

A4tech 0k-521 Driver Details:

A4tech 0k-521 File Name:

A4tech 0k-521 Driver Version: 6281U6M9X

A4tech 0k-521 ZIP Size: 129.kb

Manufacturer: A4tech

A4tech 0k-521 was fully scanned at: 12/2/2019
Scan Status: driver download scanOK

A4tech 0k-521 now has a special edition for these Windows versions: Windows 7, Windows 7 64 bit, Windows 7 32 bit, Windows 10, Windows 10 64 bit,, Windows 10 32 bit, Windows 8, Windows Vista Home Basic 64bit, Windows 10 Education 32bit, Windows 10 IoT 32bit, Windows 10 Enterprise LTSB 32bit, Windows 7 Service Pack 1 (Microsoft Windows NT) 32bit, Windows RT 32bit, Windows 7 Starter 64bit, Windows 8 64bit, Windows 10 Team 64bit, Windows 10 Home 64bit, Windows 7 Professional 32bit, Windows 10 Pro Education 32bit,

A4tech 0k-521 Download Stats:

Driver Uploaded: 4/6/2019

Direct Downloads: 283
Most Recent Download: 11/24/2019
Managed Downloads: 4302
Most Recent Download: 11/25/2019
Download Mirrors: 2
Current Delay: 15 Seconds
Driver License: FS {free software}

Direct Download Success Stats:

Reports Issued By 249/283 Users

Success Reported By 40/249 Users

Driver Download Score72/100

Driver Installation Score73/100

Overall preformance Score61/100

A4tech 0k-521 21 Thumbs Up21Thumbs
A4tech 0k-521 5 Thumbs Down5Thumbs
A4tech 0k-521 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 3493/4302 Users

Success Reported By 2768/3493 Users

Driver Download Score91/100

Driver Installation Score81/100

Overall preformance Score95/100

A4tech 0k-521 2700 Thumbs Up2700Thumbs
A4tech 0k-521 149 Thumbs Down149Thumbs
A4tech 0k-521 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 0k-521 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 0k-521 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech 0k-521, 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 0k-521 problems:

A4tech 0k-521 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 0k-521 disfunctions.

Scan performed on 4/25/2019, Computer: Sony VOA - Windows 7 64 bit

Outdated or Corrupted drivers:3/15

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel Controladora de host SMBus de chipset Intel(R) C600/X79 series - 1D22Up To Date and Functioning
Mice And Touchpads
Logitech HID mouseUp To Date and Functioning
Usb Devices
Intel Universal Serial Bus (USB) ControllerCorrupted By A4tech 0k-521
Sound Cards And Media Devices
Realtek Enheden High Definition AudioCorrupted By A4tech 0k-521
Network Cards
Ralink 802.11 USB Wireless LAN CardUp To Date and Functioning
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
Intel(R) Mobile Express Chipset SATA AHCI ControllerUp To Date and Functioning
Nokia Nokia C6-00 USB OBEXUp To Date and Functioning
Nokia Nokia C6-00 USB LCIFUp To Date and Functioning
Cameras, Webcams And Scanners
Brother Brother DCP-115C USBUp To Date and Functioning
Video Cards
NVIDIA NVIDIA GeForce FX 5200Up To Date and Functioning
Input Devices
Microsoft HID Non-User Input Data Filter (KB 911895)Corrupted By A4tech 0k-521
Port Devices
hspa Modem Application4 port (COM7)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 4/25/2019, Computer: Sony VPCW210AB - Windows 7 32 bit

Outdated or Corrupted drivers:8/18

Device/DriverStatusStatus DescriptionUpdated By Scanner
AMD High Definition Audio-besturingOutdated
Mice And Touchpads
Synaptics Mouse compatible PS/2Corrupted By A4tech 0k-521
Usb Devices
Digit@lway Digit@lway Audio PlayerUp To Date and Functioning
Genesys Logic USB-masslagringsenhetUp To Date and Functioning C-Media USB Audio (commercial 2.8.45)Corrupted By A4tech 0k-521
Sound Cards And Media Devices
Realtek Realtek AC97 AudioUp To Date and Functioning
NVIDIA NVIDIA HDMI Audio DeviceCorrupted By A4tech 0k-521
Network Cards
Samsung SAMSUNG Mobile USB Serial Port (COM9)Up To Date and Functioning
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel(R) 5 Series 6 Port SATA AHCI ControllerOutdated
AuthenTec Biometric CoprocessorCorrupted By A4tech 0k-521
SMSC SMSC Fast Infrared DriverUp To Date and Functioning
Cameras, Webcams And Scanners
Intel Canon EOS 500DUp To Date and Functioning
Video Cards
NVIDIA NVIDIA GeForce FX 5200Up To Date and Functioning
Input Devices
GENERIC USB Human Interface DeviceUp To Date and Functioning
Port Devices
Nokia Nokia Asha 311 USB Serial Port (COM5)Corrupted By A4tech 0k-521
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning
Driver ModelOSOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech 0k-521 61.12.107For Windows 7 32 bit9/22/201412/28/2016all_drivers-61.12.107.exe47kbNEC PC-VY20AED5MFA5, Gateway FX7029E, ASUS G750JW, Sony VGN-SZ1XP, HP RR861AA-ABD, Acer Aspire 1820PTZ, Lenovo ThinkPad R60e, HP P6772l, HP P6604f, MSI VR321, HP Pavilion dv6000, Fujitsu FMVU75HRG, and more.
A4tech 0k-521 M60392.1For Windows 7 64 bit12/30/201412/29/2016all_drivers-m60392.1.exe39kbHP HP Pavilion g7 Notebook PC, HP AY020AA-ABL p6320f, NOVATECH BB-4770C, HP HP Compaq nx9420, HP 23-f390, HP HP Compaq 6730b, Toshiba Satellite C850-B843, Gateway P-6318u HSN, Toshiba SATELLITE C855-1ME, Sony VGN-CS60B_Q, and more.
A4tech 0k-521 Q21.1889For Windows 79/26/201412/27/2016all_drivers-q21.1889.exe163kbSony VGN-CR363, Fujitsu ESPRIMO P2521, HP GX609AA-A2L m9160f, HP HP Pavilion dv8000, AT ALSEN, Toshiba Dynabook R822/WT9GS, LG R560-UAPW3E, IBM 2374E80, Fujitsu FMVNFB70BK, AnabelleB Graduate VA20, Sony VGN-NS52JB_P, Compaq PE427A-ABU S7150UK GB420, and more.
A4tech 0k-521 C61.131.10For Windows 102/7/201512/30/2016all_drivers-c61.131.10.exe153kbIBM 622133G, Samsung 400B4Z/A01TH, Dell Dimension 9100, HP GT690AA-AB4 IQ780d, and more.
A4tech 0k-521 2407For Windows 10 64 bit1/5/201512/29/2016-2407.exe24kbASUS BA5190,A500, HP GB290AA-AB5 m8088hk, HP HP Compaq 6710s, Lenovo 10245BG, HP S5-1217, NEC PC-VK22EAZHB, Compaq GM442AA-ABA SR5125CL, Fujitsu FMVNFD75B, Gateway FX540B, IBM 621936U, and more.
A4tech 0k-521 Y62201.1For Windows 7 32 bit10/25/201412/28/2016all_drivers-y62201.1.exe130kbNEC PC-VK25MXZCC, ASUS BP6260, Acer TravelMate 8372, Packard Bell OneTwo L3851, Gigabyte P35-S3G, NEC PC-MK29MLZDF, Panasonic CF-30F3SAXAM, HP VN465AA-UUW HPE-010sc, Toshiba SATELLITE U50-A, NEC PC-VK26TXZNG, Compaq GN666AA-ABM SG3102LA, and more.
A4tech 0k-521 2.13203For Windows 7 64 bit10/18/201412/29/2016all_drivers-2.13203.exe114kbECS HDC-I, Toshiba Dynabook T552/36FWK, Compaq GN732AA-ABH SR5135NL, IBM ThinkCentre A51p, and more.
A4tech 0k-521 44049For Windows 73/7/201512/30/2016lmzsscy-44049.exe118kbSony VPCSB3AJ, HP HP Compaq 7900, ASUS W3A, HP RX889AAR-ABA a6040, Toshiba SATELLITE PRO C850-19G, and more.
A4tech 0k-521 8372.16For Windows 102/26/201512/27/2016all_drivers-8372.16.exe160kbHP Presario 2100, Fujitsu MS-6318, Fujitsu FMVXDE6K2Z, IBM 8183GNG, NEC PC-LL900BD, Sony VGN-NW235F, Lenovo 8927W1L, LG X200-NS5BK, Sony VGN-TZ36L_B, and more.
A4tech 0k-521 22979For Windows 10 64 bit9/24/201412/27/2016a-22979.exe192kbHP DT301A-ABM T450M, HP FL308AA-ABD IQ512de, Toshiba TECRA A2, NEC Express5800/TM700, Sony VGN-SR25T_P, HP 810-190jp, IBM 8115KUT, Lenovo ThinkPad T60p, Panasonic CF-51PFDDEBM, HP NY438AA-ABA p6115y, Sony VGN-CR260F, Panasonic FZ-G1AABJB1M, HP RZ412AA-ABZ, and more.
A4tech 0k-521 U2.11.1709For Windows 812/11/201412/29/2016all_drivers-u2.11.1709.exe138kbHP NC214AA-UUW a6730sc, LG LM60-15166L, Fujitsu LIFEBOOK NH532, HP ProLiant BL490c G7, and more.
A4tech 0k-521 1.13408For Windows 7 32 bit10/3/201412/30/2016all_drivers-1.13408.exe85kbIBYTE UDP GN ANDROS-I60L, IBYTE Udp gn naxos-i1l, Lenovo ThinkPad T430, HP P8315A-ABZ 451, Gateway GT5042j, NEC PC-VY25AAZR7, Lanix LANIX CORP 4130, Fujitsu AMILO Li 2735, Gericom Phantom, Intel WIV68105-0268, Lenovo H520, Acer Aspire X1470, and more.
A4tech 0k-521 2.11.1849For Windows 7 64 bit1/10/201512/27/2016all_drivers-2.11.1849.exe98kbAT TRILINE PROFI I48, Fujitsu A6220, Lenovo ThinkPad X200, Fujitsu FMVCE70L9, Sony VGN-NW120D, NEC PC-VL750CS, NEC PC-MA30YMZEB, HP HP Compaq nx7400, HP HP Touchsmart 300-1120, Toshiba Dynabook T552/36HRJ, and more.

Please Note: There are particular operating systems known to have problems with A4tech 0k-521:
  • Windows 10 Mobile
  • Windows Vista Home Premium
  • Windows 8 Enterprise
  • Windows RT
  • Windows 8 Pro
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech 0k-521 model.
Laptop A4tech 0k-521Tablet A4tech 0k-521Download A4tech 0k-521Upgrade A4tech 0k-521Update A4tech 0k-5212019 A4tech 0k-521Free A4tech 0k-521Data A4tech 0k-521Info A4tech 0k-521Help A4tech 0k-521Guide A4tech 0k-521Comments A4tech 0k-521Windows 10 A4tech 0k-521Vista A4tech 0k-521Windows 7 A4tech 0k-521Install A4tech 0k-521