2/25/2017 new driver models for direct download:591
A4tech Www-21 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Www-21
Certifications for A4tech Www-21
5 stars for A4tech Www-21 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 2/25/2017 Updates

All drivers on are updated on daily basis.

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

A4tech Www-21 Driver Download

Windows Compatibility for A4tech Www-21 driver

A4tech Www-21 Driver Details:

A4tech Www-21 File Name:

A4tech Www-21 Driver Version: 194S2sE0

A4tech Www-21 ZIP Size: 108.kb

Manufacturer: A4tech

A4tech Www-21 was fully scanned at: 2/21/2017
Scan Status: driver download scanOK

A4tech Www-21 special revision for: Windows 7 Enterprise (Microsoft Windows NT) 32 bit, Windows XP Professional 64 bit, Windows 7 Professional 64 bit, Windows Vista Starter 64 bit, Windows XP Media Center Edition 32 bit, Windows XP Professional x64 Edition 32 bit, Windows XP Media Center Edition 2003 64 bit, Windows Vista Business 64 bit, Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0) 64 bit, Windows RT 32 bit, Windows XP Starter Edition 32 bit, Windows 7 Service Pack 1 (Microsoft Windows NT) 32 bit, Windows XP Home Edition, for home desktops and laptops 64 bit

A4tech Www-21 Download Stats:

Driver Uploaded: 12/13/2016

Direct Downloads: 1291
Most Recent Download: 2/23/2017
Managed Downloads: 1660
Most Recent Download: 2/23/2017
Download Mirrors: 2
Current Delay: 14 Seconds
Driver License: Free Software

Direct Download Success Stats:

Reports Issued By 1097/1291 Users

Success Reported By 173/1097 Users

Driver Download Score61/100

Driver Installation Score60/100

Overall preformance Score73/100

A4tech Www-21 98 Thumbs Up98Thumbs
A4tech Www-21 24 Thumbs Down24Thumbs
A4tech Www-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 1274/1660 Users

Success Reported By 1184/1274 Users

Driver Download Score91/100

Driver Installation Score93/100

Overall preformance Score81/100

A4tech Www-21 1110 Thumbs Up1110Thumbs
A4tech Www-21 24 Thumbs Down24Thumbs
A4tech Www-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 Www-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 Www-21 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Www-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.

A4tech Www-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 Www-21 disfunctions.

Scan performed on 2/25/2017, Computer: HP HP Compaq Dc7100 USDT

Outdated or Corrupted drivers:9/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
Matrox Graphics Matrox Extio USB Composite DeviceCorrupted By A4tech Www-21
Mice And Touchpads
VMware HID-compliant mouseUp To Date and Functioning
Razer USA HID mouseUp To Date and Functioning
Microsoft Logitech USB Wheel MouseUp To Date and Functioning
Usb Devices
Samsung SAMSUNG Mobile USB CDC Composite DeviceOutdated
Intel(R) 82801FB/FBM SMBus Controller - 266AUp To Date and Functioning
Sony Ericsson Sony Ericsson W300 USB WMC Data ModemUp To Date and Functioning
Sound Cards And Media Devices
DisplayLink DisplayLink USB Audio AdapterUp To Date and Functioning
Silicon Integrated Systems Corp.(1.16.01) SiS 7018 Audio DriverUp To Date and Functioning
Network Cards
Intel(R) Ethernet Connection I217-VCorrupted By A4tech Www-21
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
USB Compliance USB-massamuistilaiteUp To Date and Functioning
Point Grey Research Texas Instruments OHCI-konformer IEEE 1394-HostcontrollerUp To Date and Functioning
Nokia Nokia USB PhonetCorrupted By A4tech Www-21
Cameras, Webcams And Scanners
Philips Philips SPC1030NC WebcamOutdated
Video Cards
NVIDIA NVIDIA GeForce GT 640MCorrupted By A4tech Www-21
Input Devices
Logitech USB Input Device (Logitech Download Assistant)Up To Date and Functioning
Port Devices
LG LGE Bluetooth TransPort (COM5)Corrupted By A4tech Www-21
Sony Digital Flat Panel (1024x768)Corrupted By A4tech Www-21
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Www-21

Scan performed on 2/25/2017, Computer: NEC PC-VJ22MAUEHTXV

Outdated or Corrupted drivers:10/23

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 6 Series/C200 Series Chipset Family 6 Port SATA AHCI Controller - 1C02Up To Date and Functioning
Mice And Touchpads
Synaptics Synaptics PS/2 Port Compatible TouchPadCorrupted By A4tech Www-21
Usb Devices
Logitech Logitech Webcam 300Outdated
Logitech Logitech USB Camera (Pro for Notebooks)Outdated
Logitech HD Webcam C525Outdated
Sound Cards And Media Devices
Intel(R) Intel(R) Display-AudioUp To Date and Functioning
Pixela Sony Digital TV TunerUp To Date and Functioning
Broadcom Audio Bluetooth.Up To Date and Functioning
Network Cards
Qualcomm Atheros Atheros AR8131 PCI-E Gigabit Ethernet Controller (NDIS 6.20)Up To Date and Functioning
Microsoft Keyboard Device FilterOutdated
Hard Disk Controller
ALi Coporation ALi M5229 PCI-Bus-Master-IDE-ControllerUp To Date and Functioning
Texas Instruments Texas Instruments PCI-4520 CardBus ControllerUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 4Up To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 4Up To Date and Functioning
Nokia Nokia C6-00 USB Phone ParentUp To Date and Functioning
Microsoft Texas Instruments PCI-xx21/xx11 CardBus Controller with UltraMediaUp To Date and Functioning
NEC Generic CardBus ControllerCorrupted By A4tech Www-21
Cameras, Webcams And Scanners
Canon Canon MP495 serCorrupted By A4tech Www-21
Video Cards
Intel Standard VGA Graphics AdapterOutdated
Input Devices
Logitech USB Input DeviceUp To Date and Functioning
Port Devices
ONDA ONDA USB Enumerator For AT DeviceOutdated
Sony Digital Flat Panel (1024x768)Corrupted By A4tech Www-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 Www-21 234410/21/201412/30/2016a4tech_www-21-2344.exe43kbLenovo ThinkCentre M91p, WIPRO WIV37455-1059, Sony VPCEL15EN, Sony VGN-SR28_Q, Sony SVE15127CDS, LG LE50-23SK, Fujitsu LifeBook A6120, Panasonic CF-18KHHEBLL, Lenovo ThinkPad X61, NEC PC-VL750CS, and more.
A4tech Www-21 31.1381.11/11/201512/27/2016a4tech_www-21-31.1381.1.exe193kbCompaq AU852AA-ABM CQ5216LA, Gateway TC73, Sony VPCF13NFX, HP KT435AA-AB3 IQ508d, IBYTE UDP GN ANDROS-I60L, Sony VGN-FS35LP, Toshiba SATELLITE PRO L870-179, NEC PC-LL560MG3ER, Panasonic CF-52RE301QW, VOYAGEURPC Warranty 06/23/2014, Lenovo 7661ZRG, HP 520-1070uk, and more.
A4tech Www-21 1.11.1021.111/6/201412/30/2016a4tech_www-21-1.11.1021.1.exe204kbToshiba SATELLITE C850-12M, Lenovo ThinkPad T530, Compaq DB266A-AB1 6215KR KO910, NEC PC-MY30XEZE3, HP HDX9300, HP Presario V3000, Fujitsu Amilo A1665G Series, HP PX612AA-ABF t3024.f, IBM 8215VFZ, HP KX781AV-ABJ p6120jp, Gateway FX7026, NEC PC-VJ22GXNEHTXA, Sony SVT1113AJE, IBM System x3650 M3 -[7945K4G, HP PS384AA-B1U, IBM 23745U9, Gateway 0AAVWP08, HP NP189AA-ABA s5160f, and more.
A4tech Www-21 206391/25/201512/29/2016led-20639.exe215kbCompaq VT590AA-ABM CQ2404LA, LG LG PC, Lenovo ThinkPad T510i, Toshiba SATELLITE L850-1KZ, HP C9700, HP P6772l, IBM IBM System x3200 M2 -[4367I6A, Acer Aspire 7740, Fujitsu D2804-A1, HP HP EliteBook 2730p, HP H9-1386, Lenovo 9174Y1A, NEC PC-MY21AEZR3, Panasonic CF-19FJGAXNE, and more.
A4tech Www-21 H2.123681/2/201512/29/2016a4tech_www-21-h2.12368.exe121kbHP ED758AA-ABS, LG R405-A, Sony SVE14115FBB, HP P6374A-ABG 720a, Fujitsu FMVF53BDWS, Fujitsu FMVLX50WD, HP PX662AA-AB9, HP P6-2370ef, IBM 1832BG1, Lenovo ThinkPad L530, IBM 6221PGG, Fujitsu AMILO Xi 2528, ECS Z77H2-A2X Deluxe, and more.
A4tech Www-21 21.13372/28/201512/29/2016a4tech_www-21-21.1337.exe158kbNEC PC-LF7506D1FL, Packard Bell IMEDIA MC 5303, EMachines L4030, Fujitsu LifeBook T4310, Lenovo Lenovo G470, IBM 8184LG1, HP DT212A-ABU M487.UK, EDsys EPROI5120W7P, Gateway FX6800, HP P6540d, Avermedia 3150, IBM 8114W19, Matsonic MS8158, Lenovo ThinkPad T60p, Gateway MX6027H, and more.
A4tech Www-21 601.1962/17/201512/30/2016a4tech_www-21-601.196.exe179kbEMachines L4030, Sony VGN-A39GP, Lenovo MT-M5536-A82, HP HP Compaq nc8000, Acer V3-771, Sony VGN-AW220J, LG R470-K.AR85L, Advent DT2, IBM 6221MFG, Lenovo ThinkPad T410s, Pegatron C17B, Gigabyte EP45T-DS3, and more.
A4tech Www-21 N722.192.112/31/201412/27/2016opdvaiwk-n722.192.1.exe199kbNEC PC-VN470GS6R, Sony VGN-NS305D, HP KE485AA-UUZ, GIADA GIADA, Sony VGN-SZ76GN_B, HP CQ2800EEm, IBM System x3550 M3 -[7944PAA, Gigabyte GA-6PXSV3, HP GS407AA-ABZ, HP AY633AA-ABA p6313w, Sony VGN-BX745FN, NEC PC-LL550RG1TB, HP 20-a218d, and more.
A4tech Www-21 74072.19/14/201412/27/2016a4tech_www-21-74072.1.exe159kbSony VGN-FE770G, Lenovo 2689PHG, LG P1-J555R, IBM ThinkPad G40, HP DV6 - 3206AX, Fujitsu FMVL18B, HP HP Envy 6-1180ca, SIEMENS SIMATIC IPC647C PROFINET, IBM IBM System X3100 M4 -[2582B2A, Sony VGN-AW120D, Sony VGX-TP1L, LG S530-L.ACR1AD, Toshiba SATELLITE C850-A791, NEC PC-MK33LBZCE, HP HP Compaq 7900, HP PL494AA-ABH, DIXONSXP Philips Freevents, and more.
A4tech Www-21 2200411/9/201412/28/2016a4tech_www-21-22004.exe68kbIBM 26486G1, Lenovo 6457WK5, Sony VPCF12YFX, IBM 2668G7U, SIEMENS SIMATIC IPC627C, T-Systems T-Systems PC P4PE, NEC PC-VJ25AAN6HJR9, ZOTAC ZBOXNXS-AD11, HITACHI FLORA 330 DG5, Toshiba SATELLITE C870-12E, IBM 2389QU2, Lenovo ThinkCentre M90, IBM IBM System x3200 M2 -[4367I6A, and more.
A4tech Www-21 81.186911/22/201412/28/2016a4tech_www-21-81.1869.exe187kbHP 810-019eb, Lenovo 57125694, Compaq EC516AA-ABH SR1519NL NL530, Biostar TP55, HP HP EliteBook 2730p, Toshiba SATELLITE C850-A817, HP DW167A-ABF a425.f, HP HP EliteBook 8540w, Compal DL7x, Acer Aspire 1601M, WIPRO WIV37555-1436, Clevo W240BL_W250BZ_W270BZQ, Compaq BT466AA-ACJ CQ3211IX, and more.
A4tech Www-21 W71.12.12.1210/26/201412/29/2016a4tech_www-21-w71.12.12.12.exe95kbLenovo 7661ZRG, HP 520-1070uk, IBM ThinkPad X41 Tablet, Sony VPCCW2KGX, Sony VPCW21A7E, Lenovo IdeaPad S9e, Medion P861X, Packard Bell EasyNote_MX36-U-051, HP GL327AA-ABF a6115.f, Compaq DQ119A-ABZ S5400IT IT340, IBM IBM System x3400 M3 Server -[7379Z7X, HP HPE-380jp, Lenovo 9439Y5B, and more.
A4tech Www-21 H2.10632.112/16/201412/29/2016a4tech_www-21-h2.10632.1.exe210kbSony VGN-TZ37TN_B, HP HPE-430it, HP HP Compaq nc4010, LG N550-PE50K, Panasonic CF-S8HYEPDR, Panasonic CF-30KBPAX2M, Sony VPCF1390S, Toshiba SATELLITE C855-1U3, Fujitsu FMVNF50WWJ, HP 23-b340ef, HP P7-1012, Medion X781X/X782X, Lenovo ThinkPad X201 Tablet, Crea NW SERIES, IBM 8185LUZ, HP GJ345AA-UUW, HP HPE-310t, Compaq KY775AA-AB1 CQ3010KL, HP FK935AA-ABG IQ515a, and more.
A4tech Www-21 X4038711/25/201412/30/2016a4tech_www-21-x40387.exe98kbSony VGN-FZ180U, HP HP Pavilion dv9000, Sony VGN-FE41ZR, Sony VGX-TP1DTV, HP P6755de, WIPRO WSG52K55W7-0226, ASUS G750JW, HP P9891A-AB1 723k, LG R580-U.ARC2BT, Sony VPCF11A4E, Sony VGN-SZ55_B, WIPRO WNB7PBM5100K-0004, NEC PC-VN470GS6R, IBM 622142A, and more.
A4tech Www-21 N31.12.14611/11/201412/30/2016a4tech_www-21-n31.12.146.exe118kbIBM System x3200 M3 -[7328AC1, M&A E10IS, Sony PCG-FXA35/D, IBM 8215EKU, Sony VPCW221AX, Dell Inspiron 20 Model 3045, Stone NOTCHA-101, Sony VGN-CS15GN_B, HP EP187AA-UUZ, Sony VGN-NS38M_S, CS&S Zenet, and more.
A4tech Www-21 Q2003012/27/201412/28/2016a4tech_www-21-q20030.exe105kbMatsonic MS9387E, Sony VGN-FW17GU_H, Lenovo ThinkPad X61 Tablet, IBM 8307L9U, Sony VGC-LS21N, HP 168B, ICP / IEi KINO-690AM2, WIPRO WSG37455W7-0082, Lenovo 3000 N100 Notebook, IBM 8215EKU, Gateway NS40T, Fujitsu CELSIUS W370, Anhoch Goliath XD630, HP S5680es, Gigabyte P35C-S3, HP Pavilion dv8000, Fujitsu LIFEBOOK C1410, HP Hp elite hpe410f, HP HP G5000, and more.
A4tech Www-21 42781.19/15/201412/27/2016a4tech_www-21-42781.1.exe174kbSony VGN-FJ11_W, Panasonic CF-53AAC28FG, Acer TravelMate 8571, Mitsubishi CX25XCZOTSBF, Biostar TA75MH2, NEC PC-MY18AESETM81, HP HP Pavilion dv6 VS079EA#UUW, Sony VPCEJ2S1R, Sony VPCEL15EN, Toshiba SATELLITE C850-A791, NEC PC-MY21AESED983, LG RD560-C.ADB1F4, Lenovo ThinkPad T510, and more.
A4tech Www-21 E8303612/12/201412/29/2016a4tech_www-21-e83036.exe190kbHP NB939AA-ABF IQ525f, Fujitsu FMVXD1W92Z, HP KB003AA-B14, Lenovo 1952T60, Gateway GT5082B, NEC MS-7168, MCJ MCJ, Acer P4LJ0, HP DA322A-ABZ 434, HP PX569AA-ABY, Intel DB43LD, Lenovo ThinkPad X200s, Sony VGN-CR51B_W, IBM 2668WGY, and more.
A4tech Www-21 1.137379/24/201412/28/2016u-1.13737.exe156kbEMachines 5260IT, RM Plc RM ECOQUIET 630A, HP FT959AA-ABG a6720a, Lenovo 7661WJ2, Lenovo ThinkCentre M58, HP VS243AA-ABD HPE-010de, HP HP Compaq 6000 Pro MT PC, NEC PC-MY21AESED983, HP NQ893AA-ABU p6004uk, Toshiba Satellite 1415, NEC PC-VG32SVZGH, ICP / IEi KINO-690AM2, Fujitsu FMVLX60W, Sony VGN-FW26G_B, Fujitsu LifeBook N6470, and more.
A4tech Www-21 201.122.110/17/201412/29/2016a4tech_www-21-201.122.1.exe73kbSony VPCF13S0E, HP AU917AA-ABA e9270f, Sony VGN-CS31Z_Q, Fujitsu FMVNB18C, HP PAVILION DV8000, Packard Bell ISTART F7125 AIO, HP P6-2201sem, Lenovo ThinkPad L430, Fujitsu FPC03080AL, Lanix BRAIN 4140, and more.
A4tech Www-21 421.13312/18/201412/30/2016a4tech_www-21-421.133.exe198kbNEC PC-VY20MAZ79, HP NH836AV-ABA m9500z, HP HP Compaq nx7400, HP VD042AA-ABF p6105f, IBM 8303MJ8, HP P6620jp, Lenovo ThinkPad X200 Tablet, Sony VPCCW23FD, IBM Lenovo ThinkServer TD200 -[38173GG, Gateway J6452, Compaq PS245AA-ABF SR1339FR FR510, Sony VGN-FW140AE, Packard Bell IMedia 8002 EU, Toshiba SATELLITE L775-15N, Sony VGX-TP1DTV, ASUS A7V, ASUS CS6110, Panasonic CF-18KHHEBLL, Sony VPCW221AX, and more.
A4tech Www-21 1.122228/30/201412/30/2016a4tech_www-21-1.12222.exe160kbGateway FX7026, NEC PC-VJ22GXNEHTXA, Sony SVT1113AJE, IBM System x3650 M3 -[7945K4G, HP PS384AA-B1U, IBM 23745U9, Gateway 0AAVWP08, HP NP189AA-ABA s5160f, NEC PC-MY26AEZR4, NEC RND41042195, HP P6-2370ef, MSI GP60 2PE, and more.
A4tech Www-21 81.1231.11/4/201512/29/2016wfgr-81.1231.1.exe162kbIBM 2373NG8, HP P6562es, IBM 2374KG5, Fujitsu FMVK92B113, NEC PC-LL750TG, ARCELIK 1PF-ANB 586D1 MT, Acer Dalle, HP WL325AA-ABD p6326de, IBM 2668W13, Lenovo 23061G2, Packard Bell IXtreme X9702, and more.
A4tech Www-21 2.11.17381/20/201512/30/2016a4tech_www-21-2.11.1738.exe187kbGateway 564GE, Compaq VT606AA-AKL CQ3275L, Sony VGN-SZ76GN_B, Panasonic CF-51CCKDRBE, Toshiba Satellite P50-A X3110, Sony VPCEB1E1E, ASUS 1008HA, Fujitsu FMVXN0X81, Toshiba SATELLITE C850D-117, Toshiba Dynabook EX/56LWH, LG P310-K.CPW1A9, HP Compaq 615, Lenovo ThinkPad Edge 15, HP VG133AA-B14 p6120be, and more.

Please Note: There are particular operating systems known to have problems with A4tech Www-21:
  • Windows 7 Professional
  • Windows 7 Enterprise (Microsoft Windows NT)
  • Windows Vista Home Premium
  • Windows XP Home Edition, for home desktops and laptops
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Www-21 model.
Laptop A4tech Www-21Tablet A4tech Www-21Download A4tech Www-21Upgrade A4tech Www-21Update A4tech Www-212017 A4tech Www-21Free A4tech Www-21Data A4tech Www-21Info A4tech Www-21Help A4tech Www-21Guide A4tech Www-21Comments A4tech Www-21Windows 10 A4tech Www-21Vista A4tech Www-21Windows 7 A4tech Www-21Install A4tech Www-21