2/26/2017 new driver models for direct download:861
A4tech Kl S41 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Kl S41
Certifications for A4tech Kl S41
5 stars for A4tech Kl S41 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 2/26/2017 Updates

All drivers on are updated on daily basis.

However, a new version of A4tech Kl S41 might have been uploaded since our last site update.

A4tech Kl S41 Driver Download

Windows Compatibility for A4tech Kl S41 driver

A4tech Kl S41 Driver Details:

A4tech Kl S41 File Name:

A4tech Kl S41 Driver Version: 6402.HdH8

A4tech Kl S41 ZIP Size: 114.kb

Manufacturer: A4tech

A4tech Kl S41 was fully scanned at: 2/24/2017
Scan Status: driver download scanOK

A4tech Kl S41 special revision for: Windows 10 32 bit, Windows XP Home Edition, for home desktops and laptops 64 bit, Windows Vista Home Premium 32 bit, Windows 8 64 bit, Windows XP Home Edition N 64 bit, Windows 7 Ultimate 64 bit, Windows XP Media Center Edition 2003 64 bit, Windows XP Media Center Edition 64 bit, Windows 7 Home Premium 64 bit, Windows RT 64 bit, Windows 7 Home Basic 64 bit

A4tech Kl S41 Download Stats:

Driver Uploaded: 2/3/2017

Direct Downloads: 188
Most Recent Download: 2/23/2017
Managed Downloads: 6643
Most Recent Download: 2/24/2017
Download Mirrors: 2
Current Delay: 25 Seconds
Driver License: FS {free software}

Direct Download Success Stats:

Reports Issued By 147/188 Users

Success Reported By 14/147 Users

Driver Download Score67/100

Driver Installation Score64/100

Overall preformance Score74/100

A4tech Kl S41 7 Thumbs Up7Thumbs
A4tech Kl S41 1 Thumbs Down1Thumbs
A4tech Kl S41 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 5287/6643 Users

Success Reported By 4153/5287 Users

Driver Download Score77/100

Driver Installation Score94/100

Overall preformance Score90/100

A4tech Kl S41 4042 Thumbs Up4042Thumbs
A4tech Kl S41 230 Thumbs Down230Thumbs
A4tech Kl S41 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 S41 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 S41 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Kl S41, 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 Kl S41 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 S41 disfunctions.

Scan performed on 2/26/2017, Computer: Cybernet Manufacturing CyberMed N19

Outdated or Corrupted drivers:9/21

Device/DriverStatusStatus DescriptionUpdated By Scanner
Winbond Winbond Trusted Platform Module 1.2Corrupted By A4tech Kl S41
Mice And Touchpads
ELECOM HID-compliant mouseUp To Date and Functioning
Logitech Logitech USB iFeel MouseUp To Date and Functioning
Synaptics Synaptics SMBus TouchPadUp To Date and Functioning
Usb Devices
SarasSoft UFSx Device, (c) SarasSoftOutdated
Sound Cards And Media Devices
ASUS USB Mass Storage DeviceOutdated
Network Cards
Ikanos USB ADSL2 WAN AdapterUp To Date and Functioning
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
VIA VIA Bus Master IDE Controller - 3164Up To Date and Functioning
Microsoft Texas Instruments PCI-xx21/xx11 CardBus Controller with UltraMediaCorrupted By A4tech Kl S41
Point Grey Research Texas Instruments OHCI-konformer IEEE 1394-HostcontrollerUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 0Up To Date and Functioning
Panasonic MATSHITA DVD-RAM UJ-830SaUp To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 7Corrupted By A4tech Kl S41
Broadcom ThinkPad Bluetooth 4.0Up To Date and Functioning
Cameras, Webcams And Scanners
Canon CanoScan 3200/3200FCorrupted By A4tech Kl S41
Video Cards
NVIDIA NVIDIA GeForce4 MX 440Corrupted By A4tech Kl S41
Input Devices
Logitech Logitech Optical Tilt Wheel MouseCorrupted By A4tech Kl S41
Port Devices
PROLiNK PROLiNK UI AT Interface (COM7)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIAOutdated

Scan performed on 2/26/2017, Computer: LG R490-K.ARA2BA3

Outdated or Corrupted drivers:7/20

Device/DriverStatusStatus DescriptionUpdated By Scanner
ELAN SMBus Intel(R) ICH8 Family SMBus Controller - 283ECorrupted By A4tech Kl S41
Mice And Touchpads
Logitech Logicool HID-compliant Unifying MouseUp To Date and Functioning
Microsoft Microsoft PS/2 MouseUp To Date and Functioning
Usb Devices
Hewlett-Packard USB Composite DeviceUp To Date and Functioning
Hewlett-Packard HP Officejet 6500 E709aUp To Date and Functioning
Microsoft NEC USB HubCorrupted By A4tech Kl S41
Sound Cards And Media Devices
Creative Creative SB X-FiUp To Date and Functioning
Toshiba TOSHIBA USB ISDB-T TV Tuner(x64)Up To Date and Functioning
NVIDIA MPU-401 Compatible MIDI DeviceCorrupted By A4tech Kl S41
Network Cards
Atheros NETGEAR WNA1100 N150 Wireless USB AdapterCorrupted By A4tech Kl S41
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Silicon Integrated Kontroler SiS PCI IDEUp To Date and Functioning
Intel Intel(r) AIM External TV Encoder Driver 3Up To Date and Functioning
Creaform NEC OHCI Compliant IEEE 1394 Host ControllerCorrupted By A4tech Kl S41
Cameras, Webcams And Scanners
Brother Brother DCP-115C USBUp To Date and Functioning
Video Cards
Intel Standard VGA Graphics AdapterCorrupted By A4tech Kl S41
Input Devices
Microsoft USB Human Interface DeviceUp To Date and Functioning
Port Devices
D-Link MT65xx PreloaderUp To Date and Functioning
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Kl S41
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Kl S41 41.109612/12/201412/28/2016a4tech_kl_s41-41.1096.exe185kbSony VGN-TT1, HP P6721f, ASUS R051PX, HP HP Pavilion zd7000A, SAMSUN SX20S, Sony VGN-FW190CU, NEC VERSAE6300 RNF51118188, Fujitsu FMVFB70NT, NEC PC-LL750NSB-YC, IBM System x3650 M4: -[7915AC1, IBM IBM eServer 206m -[848510U, Gateway LT27, Gigabyte S11M, AnabelleB Graduate VA20, Lenovo ThinkPad T400s, HP HP Compaq nc6400, IBM 8171Z5S, HP PL494AA-ABH, and more.
A4tech Kl S41 F2.1278711/2/201412/27/2016a4tech_kl_s41-f2.12787.exe20kbHP P6635c, HP HP Compaq nc8000, Lenovo ThinkCentre M70e, EMachines EL1332, IBM 2724W13, Compaq Presario 5471EA 470030-395, Toshiba SATELLITE C55-A-1CR, Lenovo ThinkCentre M55p, HP HP Compaq 4000 Pro SFF PC, HP EG158AA-ABF m7171.f, Lenovo 8933W91, Omni OTC-H3222D00, and more.
A4tech Kl S41 202361/17/201512/30/2016a4tech_kl_s41-20236.exe23kbIBM System x3650 M4 : -[7915E3G, Toshiba Dynabook R732/E25HR, Sony VGN-TT46MG_B, Fujitsu FMVFE90DBY, HP HP nx9010, Fujitsu FMVNXA90N, Sony VGN-TZ31XN_B, HP FK913AA-ABG s3660a, Fujitsu FMVS90MB, Fujitsu D2812-A1, NEC NEC POWERMATE S8310-2001, IBM 1872W5A, Toshiba SATELLITE C55-A-1FN, HP PL494AA-B14, IBM 8184LG1, Toshiba Dynabook CX/45H, and more.
A4tech Kl S41 2.136832/17/201512/28/2016a4tech_kl_s41-2.13683.exe198kbFujitsu FMVNFC60H, Toshiba SATELLITE PRO C850-19G, HP RX865AA-ABU, HP 23-d219, Lenovo 7358W17, HP GX592AA-UUZ, Gateway 564GE, Packard Bell PACKARD BELL IMAX X7300 SP, HP RR820AA-UUZ, HP PW706AA-ABM W5010LA, Acer Predator G7760, IBM 8212K4U, LG R580-U.APC3BA9, HP S5-1021p, Fujitsu ESPRIMO E5916, IBM IBM IntelliStation M Pro -[922962J, and more.
A4tech Kl S41 2.1099012/20/201412/29/2016amajis-2.10990.exe179kbDK Digital EXentia, SAMSUN 3570R/370R/470R/450R/510R/4450RV, Compaq ER100AA-ABA SR1625NX NA541, Acer Extensa 7230, Fujitsu FMVNE5FD8, Panasonic CF-Y7BWTAJS, HP GL318AA-B1U, Seanix C3V, Sony PCG-GRT270, Lenovo SS09302455, HP P6740ch-m, HP PL494AA-B14, Sony VGN-NS225J, Gateway GT4228m, SAMSUN NC10, IBM 8141KGR, Gericom Phantom, BenQ Joybook T31, and more.
A4tech Kl S41 71.109011/22/201412/27/2016z-71.1090.exe141kbHP DT180A-ABF t490.f, HP Presario M2000, Acer Veriton5500G-B, Omni OTS-8100SD02815, Acer Extensa 5635G, BYTSPD ByteSpeed LLC, Sony VGN-FW53GF_W, HP VG123AA-ABF p6127f, Compaq Presario 6330CA, LG B50PS.AR5MB3E, Panasonic CF-19KHRAXAG, Gateway MC7813G, Lenovo ThinkCentre M55, HP HP Pavilion DV6-3206AX, Sony SVT131190S, Acer NC-V3-772G-747A1275MAKK, Toshiba Satellite X505, and more.
A4tech Kl S41 N1.1073811/12/201412/27/2016a4tech_kl_s41-n1.10738.exe102kbHP GS407AA-ABZ, NEC PC-GL24ES8DE, Fujitsu FMVXN0484Z, EMachines J4492, Supermicro P8SCT, Fujitsu FMVXNBGJ2Z, Lenovo ThinkCentre A61, Toshiba SATELLITE L850-153, Fujitsu FMVNA7BEC, Acer TM6595, LG S535-PE5WK, Extracomputer D3230-B1, Compaq GU587AA-ABH SR5235NL, HP KE483AA-UUZ, and more.
A4tech Kl S41 402072/5/201512/30/2016a4tech_kl_s41-40207.exe92kbNEC PC-GV267VZDL, Fujitsu ESPRIMO Mobile X9510, HP PS414AA-AB5 W1268HK, Lenovo 7358W12, Toshiba PORTEGE M750, SAMSUN 350V, Panasonic CF-52ELNFQAM, IBM 2656D7G, Packard Bell ISTART 2150, LG LW75-P333, HP GX611AA-ABA m8300f, MAXDATA PLATINUM 100 I M5, IBM 2366GG4, Toshiba SATELLITE C850-A821, Sony VGN-Z17GN_B, Dell Inspiron M5110, Gateway GT5226j, and more.
A4tech Kl S41 2.107691/28/201512/28/2016a4tech_kl_s41-2.10769.exe112kbHP EP127AA-ABD a123l, Toshiba Dynabook EX/2513CDSTB, Packard Bell IXtreme X9240, Acer TravelMate 8481TG, Matsonic MS8158, Intel Crestline, Compaq NY682AA-AR6 CQ3132L, Compaq DM174A-ABA S5300NX NA311, ASUS U24E, Sony VPCF128FJ, Sony VGN-SZ71E_B, HP NC699AA-ABJ a6740jp, Toshiba SATELLITE C850-A791, Sony VPCZ1290S, HP DT280A-ABU, NEC PC-MY18AESETM81, HP KT850AV-ABJ s3540jp, and more.
A4tech Kl S41 D61.10091/13/201512/27/2016a4tech_kl_s41-d61.1009.exe71kbBiostar GF8200C M2+, HP RT586AA-ABU, PCSMART PTI1010, Sony VGN-TZ27FN, Lenovo ThinkCentre M55e, IBM 2673CXG, Panasonic CF-W8EWYAJP, NEC PC-VJ12EBBCHCLD, LG R480-L.AGC7BT, Sony PCG-K215M, Fujitsu FMVNP2P4, HP PS426AA-ABG m1299a, Acer TravelMate 8372, Panasonic CF-74GCDDDBM, Sweetwater Sound CS250, and more.
A4tech Kl S41 631.161.12/9/201512/29/2016a4tech_kl_s41-631.161.1.exe56kbToshiba Satellite L650D, HP FK785AAR-ABA s3620f, Gateway CT5628, IBM 9210WLV, IBM 8187SYU, HP KX621AA-ABT, HP HP Compaq nx6110, Lenovo ThinkCentre A62, NEC EASYNOTE PB37R00002, Viglen VIG615M, Seneca Pro86308, ACTION MONTANA W7HP, and more.
A4tech Kl S41 781.112/13/201412/28/2016mvbny-781.1.exe166kbLenovo 8933W91, Omni OTC-H3222D00, Mustek KDZ68DBM, Sony VGC-LS31N, Dell Dell System Inspiron M4110, Sony VGC-RT150DY, HP P6-2007nl, Toshiba Dynabook T552/36FBK, Sony VGN-SZ6RXN_C, HP PS384AA-B1U, MSI MS-9899, HP P6680pt, HP HP Compaq 6730b, HP EP074AA-ABU, Sony VPCCW21FD, Gigabyte S11M, Intel Crestline, and more.
A4tech Kl S41 G328821/21/201512/27/2016a4tech_kl_s41-g32882.exe109kbHP EJ254AA-ABF w5269.f, HP HP d530 SFF, Lenovo ThinkPad T420s, IBM IBM System X3100 M4 -[258282J, Samsung N130, HP P7-1102, Intel C16, IBM 808735M, Acer Acer Project, HP HPE-350es, Sony VGN-TZ37GN_N, Fujitsu FMVD94G041, Extracomputer D3128-B2, Acer TravelMate 8371, IBM 23728EG, HP RQ424AA-AKV s7740la, and more.
A4tech Kl S41 332.1012/9/201412/28/2016a4tech_kl_s41-332.10.exe111kbDell PowerEdge 1600SC, BenQ Joybook A52, Samsung NP-R510-FS04NL, HP HP ProBook 6550b, Fujitsu FMVU90LB, Fujitsu FMVNFC60BJ, IBM ThinkPad X40, Compaq RK539AAR-ABA SR2173WM, NEC PC-MK33LBZCE, Fujitsu FMV5NUBJH3, Mustek KDZ68DBM, Lenovo 7360W78, Fujitsu PRIMERGY RX100 S6, SAMSUN NP-R510-FS04NL, and more.
A4tech Kl S41 I1.1226812/8/201412/28/2016duxpy-i1.12268.exe47kbIBM 18669MG, Gateway GT5652j, HP HP EliteBook 8530p, Sony SVE1712P1RB, Acer Aspire X1470, Toshiba SATELLITE C855-11C, Fujitsu FPC03050DK, HP FK522AAR-ABA a6544f, Compaq DM174A-ABA S5300NX NA311, ELITEGROUP 330, NEC PC-LS150HS1KSG, Packard Bell IMEDIA 6430, Epson Endeavor AT205, Sony SVT13136CWS, and more.
A4tech Kl S41 U1.133363/8/201512/29/2016a4tech_kl_s41-u1.13336.exe156kbHP KJ417AA-AB4 s3480d, Sony VPCF136FX, Dell Inspiron M5110, Epson Endeavor Pro8000-H, Compaq PX631AA-ABU SR1440UK GB520, Dell Studio 1557, Panasonic CF-T1RCAXR, Packard Bell OneTwo S3221, Toshiba SP4320, Panasonic CF-53AAC01FT, HP HP ENVY 17 3D Notebook PC, HP FR378AA-ABH, Toshiba Dynabook Satellite T30 173C/5W, and more.
A4tech Kl S41 434003/3/201512/28/2016a4tech_kl_s41-43400.exe41kbToshiba Dynabook T351/57CWS, LG S1-MOM1E2, Lenovo 7659YAN, Sony VGN-NS255J, SAMSUN 400B4A/400B5A/200B4A/200B5A, IBM 1872W5A, Gateway GT5228J, IBM 2373WMV, Lenovo ThinkCentre Edge 71z, IBM 8099KKB, HP GX610AAR-ABA m9180f, and more.
A4tech Kl S41 8338311/5/201412/28/2016a4tech_kl_s41-83383.exe54kbLenovo ThinkPad T530, HP P7-1010esm, Lenovo ThinkCentre M55p, Seneca V63909, AnabelleB Pedra BA10, RM Plc W761tg, Compaq KY718AA-UUB CQ3058HK, HP HP Compaq 6710s, Toshiba Dynabook Qosmio F20/590LS, LG E500-G.A2F1E1, Dell Dimension 9100, Toshiba Satellite L650D, NEC NEC POWERMATE S8310-2001, Lenovo 1049, EMachines 98.Y2D7Z.CF0, Toshiba SATELLITE C870-181, and more.
A4tech Kl S41 2.109/7/201412/27/2016a4tech_kl_s41-2.10.exe55kbLenovo 37612EG, HP P6640ch, IBYTE UDP GN ANDROS-I60L, HP VG292AA-ABD p6202de, Sony VGNFW590FSB, HP HP Compaq nw8240, HP EC581AA-B1U, HP Presario F500, MSI VR321, Dell PowerVault NX3200, HP Xy107et, Fujitsu FMVMG70WV, and more.
A4tech Kl S41 1.1091.162/15/201512/28/2016a4tech_kl_s41-1.1091.16.exe199kbSony VGN-CR51B_W, NEC RNM21223076, Samsung R710, HP P1017A-ABE 7945, HP KT316AA-ABE, HP 500-129, EMachines L4030, HP EP074AA-ABU, Gigabyte X58A-OC, Dell L550cx, and more.
A4tech Kl S41 MGM965JB, Sony VPCEG26EG, HP HP PAVILION DV9000 KP950EA#ABF, Seneca Pro318568, HP HP EliteBook 8460p, HP HPE-355uk, Lenovo ThinkStation S20, Sony SVE14A2V2ES, HP HP ProBook 6455b, HP KN458AA-ABT, ASUS 1008HA, HP HP d330 uT, NEC PC-LL3509D, Sony VGNZ890G, Sony VGC-LS31N, Sony PCG-GRT170, LIGHTEDGE 965LTCK, Sony VGN-NS220TH, and more.
A4tech Kl S41 81.196412/31/201412/29/2016a4tech_kl_s41-81.1964.exe94kbNEC NEC POWERMATE S8310-2001, IBM 1872W5A, Toshiba SATELLITE C55-A-1FN, HP PL494AA-B14, IBM 8184LG1, Toshiba Dynabook CX/45H, Packard Bell NC-ENLE11BZ-4508G1TMNKS, VIA 7VTXH, MIKROLOG S800SE-C6, Dell Latitude 131L, Panasonic CF-T8EWETZAM, Panasonic CF-18NHH71BM, Sony VPCW217AG, Acer Shangqi X4610, Gateway FX6840-03E, Packard Bell PACKARD BELL F806, and more.
A4tech Kl S41 2.1346911/26/201412/27/2016a4tech_kl_s41-2.13469.exe52kbSony VGN-FZ290FU, Lenovo 20131, Samsung P580, Toshiba SATELLITE C855-1NF, Dell Vostro 3555, LG LS75-26JLCE1, HP P9879A-ABG 713a, PCCHIPS M770LMRT, Lenovo 4236SUS, Sony VGN-S45C_S, IBM ThinkCentre A30, and more.
A4tech Kl S41 82702.112/10/201412/29/2016a4tech_kl_s41-82702.1.exe126kbHP NE502AAR-ABA a6750t, Gateway 510 2900039, Gateway M-152S, Fujitsu LifeBook N6470, Toshiba SATELLITE L850-1R7, Toshiba EQUIUM S6200, HP Compaq nx5000, IBM 2388DXU, IBM 622138G, Toshiba Dynabook EX/35LWH, HP G5331de, HP FQ504AA-ABG a6550a, Lenovo 1024AMU, IBM 8184MMY, IBM 8184RUM, Sony SVE14A35CVPI, Acer Veriton M-480G, IBM Eserver xSeries 235 -[8671KAX, and more.
A4tech Kl S41 E2.11.122.1912/10/201412/30/2016ugrmdjsj-e2.11.122.19.exe176kbLenovo SS09302455, Compaq P2800N P170X520WC25EC, ASUS X200MA, Sony VGN-SZ780U, Sony VGN-Z21WN_B, ASUS X71S, Lenovo 57125694, LG RD580-UAD18E, Acer ASPIRE1420P_MSFT, IBM 818743F, HP DW225A-ABE, NEC PC-MY28VLZEJ, Panasonic CF-30CTQCBBM, ALFATRON SpA HX610, Lenovo 6464WAM, HP Pavilion dv9000, Gateway M250B, HP FQ562AA-A2L m9500f, Panasonic CF-19KDRC66M, and more.
A4tech Kl S41 206669/5/201412/27/2016a4tech_kl_s41-20666.exe190kbNOVATECH BB-83208A, Sony VPCCA1AFJ, Packard Bell IMedia D9235, HP HP ProBook 6555b, HP NQ852AA-ABH IQ830nl, Fujitsu FMVNFC60BJ, HP KT316AA-ABE, Toshiba Dynabook T350/34BCS, HP D5468AT-ABA GX768AA, HP DW167A-ABF a425.f, Packard Bell IMEDIA D5230 BE, HP EZ082AA-ABF M7438.FR, and more.

Please Note: There are particular operating systems known to have problems with A4tech Kl S41:
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows Vista Ultimate
  • Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0)
  • Windows XP Media Center Edition 2004
  • Windows XP Professional x64 Edition
  • Windows XP Home Edition N
  • Windows 7 Ultimate
  • Windows Vista Home Premium
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Kl S41 model.
Laptop A4tech Kl S41Tablet A4tech Kl S41Download A4tech Kl S41Upgrade A4tech Kl S41Update A4tech Kl S412017 A4tech Kl S41Free A4tech Kl S41Data A4tech Kl S41Info A4tech Kl S41Help A4tech Kl S41Guide A4tech Kl S41Comments A4tech Kl S41Windows 10 A4tech Kl S41Vista A4tech Kl S41Windows 7 A4tech Kl S41Install A4tech Kl S41