4/23/2017 new driver models for direct download:1129
A4tech Swu-21 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Swu-21
Certifications for A4tech Swu-21
5 stars for A4tech Swu-21 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 4/23/2017 Updates

All drivers on are updated on daily basis.

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

A4tech Swu-21 Driver Download

Windows Compatibility for A4tech Swu-21 driver

A4tech Swu-21 Driver Details:

A4tech Swu-21 File Name:

A4tech Swu-21 Driver Version: 945BuYI0p

A4tech Swu-21 ZIP Size: 100.kb

Manufacturer: A4tech

A4tech Swu-21 was fully scanned at: 4/18/2017
Scan Status: driver download scanOK

A4tech Swu-21 special revision for: Windows 7 Ultimate 32 bit, Windows 7 Professional 64 bit, Windows XP Professional x64 Edition 32 bit, Windows XP Media Center Edition 2004 32 bit, Windows XP Tablet PC Edition 64 bit, Windows 10 64 bit, Windows XP Media Center Edition 2005 64 bit

A4tech Swu-21 Download Stats:

Driver Uploaded: 4/21/2017

Direct Downloads: 93
Most Recent Download: 4/22/2017
Managed Downloads: 4874
Most Recent Download: 4/22/2017
Download Mirrors: 5
Current Delay: 28 Seconds
Driver License: FS {free software}

Direct Download Success Stats:

Reports Issued By 71/93 Users

Success Reported By 10/71 Users

Driver Download Score75/100

Driver Installation Score63/100

Overall preformance Score72/100

A4tech Swu-21 1 Thumbs Up1Thumbs
A4tech Swu-21 0 Thumbs Down0Thumbs
A4tech Swu-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 4302/4874 Users

Success Reported By 3586/4302 Users

Driver Download Score80/100

Driver Installation Score79/100

Overall preformance Score80/100

A4tech Swu-21 3302 Thumbs Up3302Thumbs
A4tech Swu-21 281 Thumbs Down281Thumbs
A4tech Swu-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 Swu-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 Swu-21 + all other outdated drivers, and installs them all at once.

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

A4tech Swu-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 Swu-21 disfunctions.

Scan performed on 4/23/2017, Computer: Sony VGN-NS11SR_S

Outdated or Corrupted drivers:10/22

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) ICH8 Family PCI Express Root Port 3 - 2843Up To Date and Functioning
Mice And Touchpads
Synaptics PS/2 Compatible MouseCorrupted By A4tech Swu-21
Wacom HID-compliant mouseUp To Date and Functioning
Usb Devices
Huawei HUAWEI Enumerator DeviceCorrupted By A4tech Swu-21
NEC CASIO Mobile N-07D Bus DriverUp To Date and Functioning
Sound Cards And Media Devices
Intel Intel WiDi Audio DeviceOutdated
NVIDIA NVIDIA GeForce GT 550MUp To Date and Functioning
Network Cards
Realtek Realtek RTL8723BE Wireless LAN 802.11n PCI-E NICCorrupted By A4tech Swu-21
Microsoft Keyboard Device FilterCorrupted By A4tech Swu-21
Hard Disk Controller
USB Compliance USB Mass Storage DeviceUp To Date and Functioning
Microsoft HID-compliant apparaatOutdated
Texas Instruments Texas Instruments PCI7420 Integrated FlashMedia ControllerOutdated
Broadcom ThinkPad Bluetooth 4.0Up To Date and Functioning
Creaform NEC OHCI Compliant IEEE 1394 Host ControllerUp To Date and Functioning
Motorola Android Composite ADB InterfaceOutdated
Texas Instruments Texas Instruments PCIxx12 Integrated FlashMedia ControllerUp To Date and Functioning
Cameras, Webcams And Scanners
Canon Canon MP495 serCorrupted By A4tech Swu-21
Video Cards
NVIDIA NVIDIA GeForce GT 640MUp To Date and Functioning
Input Devices
Lenovo USB DeviceUp To Date and Functioning
Port Devices
D-Link USB Single PortOutdated
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAUp To Date and Functioning

Scan performed on 4/23/2017, Computer: Fujitsu A6220

Outdated or Corrupted drivers:8/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel Mobile Intel(R) 945GM/GU/PM/GMS/940GML/943GML and Intel(R) 945GT Express Processor to DRAM Controller - 27A0Up To Date and Functioning
Mice And Touchpads
Microsoft Microsoft USB Wheel Mouse OpticalUp To Date and Functioning
Usb Devices
AMD Standard Enhanced PCI naar USB-hostcontrollerUp To Date and Functioning
Samsung USB Composite DeviceUp To Date and Functioning
Sound Cards And Media Devices
Intel(R) Intel(R) Display AudioUp To Date and Functioning
Realtek ATI HDMI AudioUp To Date and Functioning
ESS ESS Maestro2E PCI AudioDrive (WDM)Corrupted By A4tech Swu-21
Network Cards
PANTECH PANTECH UM175 WWAN DriverUp To Date and Functioning
Microsoft HID KeyboardOutdated
Hard Disk Controller
Intel(R) 7 Series/C216 Chipset Family SATA AHCI Controller - 1E03Outdated
NEC Texas Instruments PCIxx21/x515 Cardbus ControllerUp To Date and Functioning
Nokia Nokia 5230 USB OBEXUp To Date and Functioning
Broadcom Broadcom Bluetooth 4.0Corrupted By A4tech Swu-21
Cameras, Webcams And Scanners
Canon CanoScan 3200/3200FUp To Date and Functioning
Video Cards
Intel(R) HD Graphics 4000Outdated
Input Devices
Microsoft HID-compliant consumer control deviceUp To Date and Functioning
Port Devices
Mobile Connector Device Diagnostic Interface (COM11)Corrupted By A4tech Swu-21
Sony Digital Flat Panel (1024x768)Corrupted By A4tech Swu-21
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Swu-21
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Swu-21 C1.1294212/16/201412/27/2016y-c1.12942.exe117kbToshiba Dynabook Qosmio F20/590LS, NEC PC-MY21AEZR3, Fujitsu FMVNFB75DJ, Panasonic CF-30C4TAABM, NEC PC-GL22ES3GA, Gateway 510 sku, Sony VPCEG15FL, HP HP PAVILION DV9000, HP 110-010xt, Sony VGC-JS53FB_P, and more.
A4tech Swu-21 1.1382.1610/9/201412/27/2016oxm-1.1382.16.exe143kbPackard Bell IPower I9810 GE, HP D5468AT-ABA GX768AA, HP 3082, INVESTRONICA P60, HP HP EliteBook 6930p Notebook PC, and more.
A4tech Swu-21 4026911/14/201412/28/2016em-40269.exe42kbLenovo 7484WWY, IBM Razo, HP HP Compaq 8200 Elite CM, HP P6-2007nl, Dimotion PCDO5V3, Packard Bell IMEDIA 9206, Panasonic CF-30KCPRQAM, Gateway 0AAVWP08, Sony VGNFW590GJB, HP AV131AV-ABA e9105z, Sony VGN-NS250TJ, LG LW65-KDTRV, Toshiba Dynabook EX/33JK, and more.
A4tech Swu-21 1.1332.181/2/201512/29/2016-1.1332.18.exe144kbPackard Bell Easynote sb86, LG S1-PRIDE, HP HP Pavilion dv5 Notebook PC, HP HPE-550be, and more.
A4tech Swu-21 21.11.13412/17/201412/29/2016ssmwswvie-21.11.134.exe210kbHP KA763AA-ABU, Fujitsu FMVNT5FT4, IBM ThinkPad R40, Leading Edge LECB7400, Lenovo ThinkPad X100e, NEC PC-MY30AEZ77, HP 220-1100t, Intel S3420GP, LG S1-MOM1E2, EMachines Emachines D525, Dell Dell System Inspiron M4110, Toshiba SATALLITE A300, and more.
A4tech Swu-21 Z2.130239/19/201412/28/2016bivwc-z2.13023.exe55kbHP Presario 2500, HP HP ProBook 4510s, LG R490-KR8WK, HP KT391AA-AB4 a6590d, Lenovo ThinkPad Edge 15, Gigabyte G33M-S2, Sony VGN-FT92S, Packard Bell EASYNOTE_MX52-B-070, and more.
A4tech Swu-21 32.1609/20/201412/28/2016hgufjfb-32.160.exe41kbIBM Lenovo ThinkServer TS200 -[652512G, IBM ThinkPad R50e, Packard Bell EasyNote_BG45-U-002CH, Acer AX12300-U1801A, Toshiba Satellite C870-DMK, IBM 2669WCC, Acer AcerPower 8000, NEC PC-MY18XAZ7HM95, and more.
A4tech Swu-21 21.13941/29/201512/27/2016a4tech_swu-21-21.1394.exe91kbAcer Aspire 8943, Acer Veriton L670, HP RQ480AA-ABZ, Sony PCG-GRT896SP, HP P9867A-ABM 743M, Fujitsu FMVNFC60BJ, Daewoo CT7150, HP WC734AA-ABD 1130de, Lenovo ThinkPad X220 Tablet, System76 Leopard Extreme, and more.
A4tech Swu-21 M821.1079/25/201412/29/2016a4tech_swu-21-m821.107.exe183kbToshiba Dynabook Qosmio T750/T8BS, IBM 6792GGU, NEC PC-VN370CS1KS, HP HP ProBook 6455b, Toshiba Dynabook EX1/524CMEWD, NEC PC-MJ26XRZWTSBJ, IBM 217163G, Gateway FX540B, Sony VGN-FS35LP, ASUS R051PX, and more.
A4tech Swu-21 71.13892/14/201512/30/2016a4tech_swu-21-71.1389.exe99kbPinnacle C5108, MSI SO-7597, Lenovo ThinkPad Edge E530, HP HP Compaq dc7100 SFF, HP AY627AAR-ABA a4313w, HP HP ProBook 4510s, Sony VPCW12M1E, and more.
A4tech Swu-21 B3289611/30/201412/28/2016a4tech_swu-21-b32896.exe140kbMSI U4-7302, Sony VGN-FZ32G, HP P6-2201sem, Sony VPCEA1S1R, Packard Bell EasyNote_MX37-V-058NL, HP PS351AA-B1U, and more.
A4tech Swu-21 R41.178912/10/201412/28/2016a4tech_swu-21-r41.1789.exe101kbPanasonic CF-19HH165NW, IBM 8213WCM, Fujitsu N6220, RM Plc RM ECOQUIET 630A, Acer ATC-603, LG FS-2A35A, Fujitsu FMVLRB7N24, Gigabyte 946GM-S2, NEC PC-GV18YCZR6, Toshiba Dynabook Qosmio T851/D8EB, MIKROLOG S800SE-C6, and more.
A4tech Swu-21 P340732/18/201512/30/2016a4tech_swu-21-p34073.exe27kbDell Vostro 1540, HP HP Compaq DC5850, NEC RND51048395, Notebook W310CZ/CZ-T, Acer Aspire 7740, and more.

Please Note: There are particular operating systems known to have problems with A4tech Swu-21:
  • Windows XP Media Center Edition
  • Windows 7 Professional
  • Windows 7 Home Basic
  • Windows 8 Enterprise
  • Windows XP Tablet PC Edition
  • Windows XP Tablet PC Edition
  • Windows XP Media Center Edition 2003
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Swu-21 model.
Laptop A4tech Swu-21Tablet A4tech Swu-21Download A4tech Swu-21Upgrade A4tech Swu-21Update A4tech Swu-212017 A4tech Swu-21Free A4tech Swu-21Data A4tech Swu-21Info A4tech Swu-21Help A4tech Swu-21Guide A4tech Swu-21Comments A4tech Swu-21Windows 10 A4tech Swu-21Vista A4tech Swu-21Windows 7 A4tech Swu-21Install A4tech Swu-21