10/23/2016 new driver models for direct download:1114
A4tech Kl(s)-40 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Kl(s)-40
Certifications for A4tech Kl(s)-40
5 stars for A4tech Kl(s)-40 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 10/23/2016 Updates

All drivers on are updated on daily basis.

However, a new version of A4tech Kl(s)-40 might have been uploaded since our last site update.

A4tech Kl(s)-40 Driver Download

Windows Compatibility for A4tech Kl(s)-40 driver

A4tech Kl(s)-40 Driver Details:

A4tech Kl(s)-40 File Name: a4tech_kl(s)

A4tech Kl(s)-40 Driver Version: 484a1

A4tech Kl(s)-40 ZIP Size: 113.kb

Manufacturer: A4tech

A4tech Kl(s)-40 was fully scanned at: 10/19/2016
Scan Status: driver download scanOK

A4tech Kl(s)-40 special revision for: Windows XP Media Center Edition 32 bit, Windows Vista Home Basic 32 bit, Windows Vista Home Premium 32 bit, Windows XP Professional x64 Edition 64 bit, Windows Vista Ultimate 64 bit, Windows XP 64-bit Edition 64 bit, Windows 7 Enterprise (Microsoft Windows NT) 32 bit, Windows XP Media Center Edition 2004 64 bit, Windows 8 64 bit, Windows XP Media Center Edition 2005 64 bit, Windows XP Professional N 64 bit, Windows XP Media Center Edition 32 bit, Windows 7 Home Basic 64 bit, Windows 8 Enterprise 32 bit

A4tech Kl(s)-40 Download Stats:

Driver Uploaded: 9/19/2016

Direct Downloads: 1289
Most Recent Download: 10/21/2016
Managed Downloads: 3428
Most Recent Download: 10/21/2016
Download Mirrors: 2
Current Delay: 27 Seconds
Driver License: FS {free software}

Direct Download Success Stats:

Reports Issued By 1196/1289 Users

Success Reported By 120/1196 Users

Driver Download Score71/100

Driver Installation Score66/100

Overall preformance Score67/100

A4tech Kl(s)-40 68 Thumbs Up68Thumbs
A4tech Kl(s)-40 17 Thumbs Down17Thumbs
A4tech Kl(s)-40 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 2910/3428 Users

Success Reported By 2359/2910 Users

Driver Download Score81/100

Driver Installation Score96/100

Overall preformance Score91/100

A4tech Kl(s)-40 2144 Thumbs Up2144Thumbs
A4tech Kl(s)-40 168 Thumbs Down168Thumbs
A4tech Kl(s)-40 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 Kl(s)-40 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 Kl(s)-40 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Kl(s)-40, or the driver installation manager, take a few minutes to send us a report:
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A4tech Kl(s)-40 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 Kl(s)-40 disfunctions.

Scan performed on 10/23/2016, Computer: Lanix BRAIN 4140

Outdated or Corrupted drivers:5/19

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) 82801G (ICH7 Family) SMBus Controller - 27DAUp To Date and Functioning
Mice And Touchpads
Logitech Logitech USB WheelMouseUp To Date and Functioning
Logitech Logitech Gaming Virtual MouseCorrupted By A4tech Kl(s)-40
Logitech Logitech USB iFeel MouseUp To Date and Functioning
Usb Devices
Cambridge Silicon Radio USB BTUp To Date and Functioning
Sound Cards And Media Devices
Logitech Webcam C210Up To Date and Functioning
Creative Port jeu pour CreativeUp To Date and Functioning
Network Cards
Intel(R) Centrino(R) Wireless-N 6150Up To Date and Functioning
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
NVIDIA NVIDIA MCP51 Parallel ATA ControllerCorrupted By A4tech Kl(s)-40
Broadcom ThinkPad Bluetooth 4.0Up To Date and Functioning
Realtek Semiconduct Realtek PCIE CardReaderUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 6Up To Date and Functioning
Cameras, Webcams And Scanners
SunplusIT HD WebcamUp To Date and Functioning
Video Cards
VIA/S3G VIA/S3G UniChrome Pro IGPCorrupted By A4tech Kl(s)-40
Input Devices
Logitech Logitech WingMan Digital DeviceUp To Date and Functioning
Port Devices
Huawei HUAWEI Mobile Connect - USB Device (COM32)Corrupted By A4tech Kl(s)-40
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Kl(s)-40

Scan performed on 10/23/2016, Computer: HP ED716AA-ABF W5149

Outdated or Corrupted drivers:9/21

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel Controladora simple de comunicaciones PCICorrupted By A4tech Kl(s)-40
Mice And Touchpads
Logitech Logitech iFeel Mouse (USB)Up To Date and Functioning
Microsoft Microsoft USB IntelliMouseCorrupted By A4tech Kl(s)-40
Usb Devices
Intel USB DeviceUp To Date and Functioning Burr-Brown USB Audio Codec 2900 (commercial 2.8.45)Up To Date and Functioning
Sound Cards And Media Devices
Realtek Enheden High Definition AudioUp To Date and Functioning
Realtek Audioapparaat op de bus voor High Definition AudioOutdated
NVIDIA NVIDIA GeForce GT 555MUp To Date and Functioning
Network Cards
Intel(R) Centrino(R) Wireless-N 130Corrupted By A4tech Kl(s)-40
Microsoft HID KeyboardUp To Date and Functioning
Hard Disk Controller
NVIDIA NVIDIA Network Bus EnumeratorCorrupted By A4tech Kl(s)-40
Texas Instruments Texas Instruments PCI7420 Integrated FlashMedia ControllerUp To Date and Functioning
Intel(R) Sensor SolutionUp To Date and Functioning
Intel Intel(r) AIM External TV Encoder Driver 5Up To Date and Functioning
Point Grey Research Texas Instruments OHCI-kompatibel IEEE 1394-vertskontrollerOutdated
Cameras, Webcams And Scanners
Canon CanoScan LiDE 110Outdated
Video Cards
ATI RADEON X300 SeriesUp To Date and Functioning
Input Devices
Eastern Times USB-HID (Human Interface Device)Up To Date and Functioning
Port Devices
PROLiNK PROLiNK Diagnostics Device (COM8)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Outdated
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Kl(s)-40
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Kl(s)-40 Y3371.149/18/201412/28/2015a4tech_kl(s)-40-y3371.14.exe151kbPanasonic CF-52GCR42AG, IBM 265244G, HP KY731AA-AKL a6784l, HP HP Compaq nx6120, Fujitsu LifeBook A6210, Toshiba PSC0LA-01C01H, Fujitsu FMVA77HRG, HP CQ1150FRm, Positivo POS-EC945AL, MSI ThirdWave Corporation Prime Series, Toshiba Dynabook Qosmio T750/T8BS, Gateway DX442S, HP HP Compaq nx8220, and more.
A4tech Kl(s)-40 CF-R8EWBAAP, Toshiba Satego P100, LG R470-KRW5K, OEGStone CS-B, Toshiba Satellite A100-999, Sony VGN-SZ7AWN_C, Sony SVT1113AJE, LG P1-J455R, Compaq VT606AA-AKL CQ3275L, IBM 8183TQG, Gateway FX6840-03E, Panasonic CF-W8FWDAJR, ARISTO VISION i535, Fujitsu FMVXNBLQ2Z, Sony VPCZ1290S, Crea NW SERIES, Lenovo 7359W4B, Toshiba SATELLITE L850-13U, and more.
A4tech Kl(s)-40 6309212/20/201412/30/2015a4tech_kl(s)-40-63092.exe51kbGigabyte G31M-ES2C, Packard Bell IXTREME GOLD H5050, Lenovo IdeaCentre K32010031, Packard Bell EASYNOTE_MX52-B-551NC, HP WC812AA-ABV HPE-130me, Lenovo 2718WLZ, HP Pavilion ze8500, Acer Shangqi X4610, Sony VGN-NS305D, HP HP Compaq nc8000, NEC PC-MK31MEZCE, Toshiba S A110-160, HP NM920AA-ABU m9639uk, AnabelleB Soho WN10, Fujitsu FMVCEG45N7, HP HP 620, and more.
A4tech Kl(s)-40 4362611/4/201412/30/2015gnamg-43626.exe54kbToshiba SATELLITE C855-1WU, Haier T5B, IBM 8212K4U, Acer Veriton S680G, Fujitsu FMVNS8YE, ZOTAC ZBOXNXS-AD11, Sony VPCEH18FK, NEC PC-VL750CS, HP HP nx9000, Sony VPCF13XFX, Panasonic CF-30CWQAZBM, IBM 2373WZW, Sony VGN-SZ79GN_C, HP Rfrb h8-1100z, LG P1-5005P, and more.
A4tech Kl(s)-40 62931.112/14/201412/29/2015a4tech_kl(s)-40-62931.1.exe176kbHP HP Pavilion dv9600 Notebook PC, Sony SVE151100C, Fujitsu FMVMG75YD5, Sony VGN-FW245J, Sony VPCCW2VFX, Lenovo 23242F3, HP PW579AA-ABG m7088a, HP RJ131AA-AB8 t3620.t, IBM 842777G, Fujitsu FMVH70K9V, Packard Bell IMEDIA 6556, Notebook MIM2320, BYTSPD ByteSpeed LLC, IBM IBM System x3200 M2 -[4367I6A, NEC PC-LL900BD, Compaq GN547AA-AC4 SG3110BR, Lanix LANIX CORP 4080, IBM EServer xSeries 365 -[88625RX, Acer Veriton Z430G, and more.
A4tech Kl(s)-40 O21.192.101/14/201512/29/2015a4tech_kl(s)-40-o21.192.10.exe100kbCompaq VN469AA-UUZ CQ5235CH, Packard Bell EASYNOTE_MX61-B-026, Toshiba Satellite C850-B843, Panasonic CF-SX1WEVHR, HP GM435AA-UUW, Datateknik EXPER, Sony VGN-FE41ZR, Sony VGN-FW41E_H, NEC PC-MY30VBZED, Sony VGN-FE41ZR, LG E300-A.C28BC1, Acer Veriton S680G, Mio N890, HP KJ325AA-ABG a6440a, and more.
A4tech Kl(s)-40 Z73421.18/24/201412/28/2015a4tech_kl(s)-40-z73421.1.exe133kbHP P9879A-ABG 713a, Compaq RR472AA-ABF SR2102FR, NEC PC-MY24ABZE4, IBM 8419KMA, Sony VGN-SZ390P, Sony SVE1412ECXP, HP G5261de, HP FQ504AA-ABG a6550a, HP Pavilion dv5 NoteBook PC, Sony VGN-FW43G_B, WIPRO WSG37425V-0054, Toshiba Satellite A100-386, Fujitsu ESPRIMO E7935, LG R490-K.AFE3BZ, Packard Bell IPOWER X9075, IBM System x3630 M3 -[7377AC1, and more.
A4tech Kl(s)-40 P3291.191/10/201512/30/2015a4tech_kl(s)-40-p3291.19.exe157kbLG F1-2242HS, Acer TM6595, HP Vd019aar-UUW, Lenovo 20AL009CUS, HP RA933AA-ABZ, Lenovo ThinkPad T410, MCJ 9223, HP FJ440AA-UUW, Acer Aspire M1850, LG R470-KRW4K, Sony VGN-CR363, LG R470-K.AR85L, Gigabyte EP43C-DS3, IBYTE Udp gn naxos-i1l, WIPRO WSG59355W7S-0014, HP HP Envy 6-1180ca, Panasonic CF-T8EWETZAM, Sony VGN-TZ35AN, SIEMENS SIMATIC IPC647C PROFINET, and more.
A4tech Kl(s)-40 R21.132.12.112/5/201412/29/2015a4tech_kl(s)-40-r21.132.12.1.exe160kbSeneca Pro64601, IBM 8419KMA, EMachines 5260IT, Sony PCG-GRX700, Seneca Pro64601, Fujitsu FMVA77HRG, LG RB380-A.AFLGL, Advent Monza, MSW GmbH & Co. KG Intel DP55WB, NEC KV2, and more.
A4tech Kl(s)-40 4062.171/31/201512/27/2015a4tech_kl(s)-40-4062.17.exe87kbHP GG700AA-UUW, HP P6635c, HP P7-1010esm, Panasonic CF-30CWQAZBM, Lenovo 00P5095, Medion E3211, HP Hp pavilion ze4900, ASUS N56VM, NEC PC-VT1000J6FD, Fujitsu FMVD70BNB7, Fujitsu FMVLX60TY, IBM 8183GNG, Toshiba SATELLITE C855-20M, HP P6786l, MAXDATA Fusion 1000 I, NEC NEC POWERMATE S2100-006, HP PN135AA-ABU, Sony VGN-NS15G_S, LG R470-KRW5K, and more.
A4tech Kl(s)-40 6306311/30/201412/27/2015a4tech_kl(s)-40-63063.exe42kbHP FK785AA-A2L s3620f, Compaq DQ119A-ABZ S5400IT IT340, IBM 23731G2, HP HP Pavilion 6700 Notebook PC, Panasonic CF-W7DWJQJR, Samsung 400B4Z/A01TH, Compaq VS459AA-ABE CQ5211ES, ASUS U24E, HP HP Compaq n6120, HP RR518AA-ABH S7730, WIPRO WSG68125W7-0002, Packard Bell IXTREME MC 9740, Sony VGN-B250FP, HP Presario C300, and more.
A4tech Kl(s)-40 1.1272.11.12/26/201512/30/2015a4tech_kl(s)-40-1.1272.11.1.exe214kbGateway FX6840-03E, Panasonic CF-W8FWDAJR, ARISTO VISION i535, Fujitsu FMVXNBLQ2Z, Sony VPCZ1290S, Crea NW SERIES, Lenovo 7359W4B, Toshiba SATELLITE L850-13U, Panasonic CF-30CASCZBM, NEC PC-MJ26EBZD1FSG, Lenovo ThinkPad X301, Sony VGC-JS71B_S, IBM IBM System x3400 M3 Server -[7379KFG, Lenovo 7663V2L, Sony VPCW21A7E, Medion E3211, Sony VPCF13QFX, HP P6740ch-m, and more.
A4tech Kl(s)-40 A39298/29/201412/29/2015a4tech_kl(s)-40-a3929.exe140kbLG E500-K.APCAY, SAMSUN 770Z5E/780Z5E, Fujitsu N6220, Gateway EC1457U, LG X110-L.A7A2E2, Sony SVE14115FBB, Buympc ClientPro 385 ADMC2, Sony VPCF1290X, HP Compaq 6200 Pro SFF PC, HP GS184AA-AB0 a6240tw, Lenovo 4236SUS, Dell Studio 1557, HP HPE-420f, Lenovo ThinkCentre M82, Samsung SM50S, Panasonic CF-F9JYFCDR, LG K1-2249A9, and more.
A4tech Kl(s)-40 6398211/1/201412/30/2015a4tech_kl(s)-40-63982.exe52kbSeneca Pro334980, Sony VGN-S45C_S, HP FK522AAR-ABA a6544f, Packard Bell EASYNOTE SW86, HP KX762AA-ABE, HP K574aa-ABA a1739, LG LW70-QJMA, Lenovo ThinkPad Edge E420, ASUS 1005HA, NEC PC-LL750ES3KS, LG R490-K.ARCWE1, and more.
A4tech Kl(s)-40 2.108268/30/201412/27/2015a4tech_kl(s)-40-2.10826.exe155kbNEC PC-LL900BD, Toshiba TE5, OEGStone DQ67OW, Seneca PRO02421, IBM ThinkPad T21, Gateway 6020GZ, Fujitsu FMVNB5Y3, HP HPE-355uk, Sony VGN-FE52B_H, Sony VGX-TP1E, Fujitsu FMVA42EWKS, HP HP EliteBook 8540w, Supermicro X9DRE-TF+/X9DR7-TF+, M&A MADB43LD, and more.
A4tech Kl(s)-40 41.174711/27/201412/28/2015a4tech_kl(s)-40-41.1747.exe166kbLG LS50-A514ZL, Lenovo ThinkPad T430, WINCOR NIXDORF EPC A4, HP P7-1102, IBM 8185LUZ, Sony PCG-GRT896SP, IBM 682466A, TriGem AVERATEC, Fujitsu FMVNS8YE, IBM 2672RD3, Sony VGN-A317S, HP HP PRESARIO V6000, Sony VGN-TZ240N, NEC EASYNOTE PB41Q00006, Sony PCG-Z1WAMP, LG XNOTE, and more.
A4tech Kl(s)-40 1.1272611/11/201412/27/2015pjuku-1.12726.exe215kbMAXDATA Fusion 1000 I, Packard Bell Imedia S3270, HP HP d330 ST, HP 700-150ef, NEC PC-LL560MG3ER, Fujitsu D2364-A3, Sony VGN-NS250TJ, IBM 26486G1, VVIKOO VI P67 PRO, IBM 8113V7F, HP RZ412AA-ABZ, Acer Veriton S480G, and more.

Please Note: There are particular operating systems known to have problems with A4tech Kl(s)-40:
  • Windows XP Media Center Edition 2004
  • Windows Vista Ultimate
  • Windows XP Professional
  • Windows XP Starter Edition
  • 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 Kl(s)-40 model.
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