3/27/2017 new driver models for direct download:929
A4tech Kb(s)-7 5 stars review"The best driver WIKI ever! I wil keep coming back for sure."Eric Smalter, Boston, MA
Supported languages for A4tech Kb(s)-7
Certifications for A4tech Kb(s)-7
5 stars for A4tech Kb(s)-7 "WOW! Finally my PC got up to speed!" Melany Kim 7/18/2015

Checking...for 3/27/2017 Updates

All drivers on are updated on daily basis.

However, a new version of A4tech Kb(s)-7 might have been uploaded since our last site update.

A4tech Kb(s)-7 Driver Download

Windows Compatibility for A4tech Kb(s)-7 driver

A4tech Kb(s)-7 Driver Details:

A4tech Kb(s)-7 File Name: a4tech_kb(s)

A4tech Kb(s)-7 Driver Version: 522V6H0c

A4tech Kb(s)-7 ZIP Size: 123.kb

Manufacturer: A4tech

A4tech Kb(s)-7 was fully scanned at: 3/26/2017
Scan Status: driver download scanOK

A4tech Kb(s)-7 special revision for: Windows XP Tablet PC Edition 32 bit, Windows XP Media Center Edition 32 bit, Windows XP Professional x64 Edition 64 bit, Windows XP Professional 32 bit, Windows Vista Ultimate 64 bit, Windows XP Home Edition, for home desktops and laptops 32 bit, Windows 8 Pro 32 bit

A4tech Kb(s)-7 Download Stats:

Driver Uploaded: 2/1/2017

Direct Downloads: 703
Most Recent Download: 3/26/2017
Managed Downloads: 6408
Most Recent Download: 3/26/2017
Download Mirrors: 3
Current Delay: 26 Seconds
Driver License: FS {free software}

Direct Download Success Stats:

Reports Issued By 699/703 Users

Success Reported By 122/699 Users

Driver Download Score65/100

Driver Installation Score66/100

Overall preformance Score74/100

A4tech Kb(s)-7 56 Thumbs Up56Thumbs
A4tech Kb(s)-7 13 Thumbs Down13Thumbs
A4tech Kb(s)-7 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 6176/6408 Users

Success Reported By 5443/6176 Users

Driver Download Score84/100

Driver Installation Score92/100

Overall preformance Score76/100

A4tech Kb(s)-7 5150 Thumbs Up5150Thumbs
A4tech Kb(s)-7 500 Thumbs Down500Thumbs
A4tech Kb(s)-7 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 Kb(s)-7 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 Kb(s)-7 + all other outdated drivers, and installs them all at once.

Please help us maintain a helpfull driver collection.
After downloading and installing A4tech Kb(s)-7, 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 Kb(s)-7 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 Kb(s)-7 disfunctions.

Scan performed on 3/27/2017, Computer: Packard Bell IPower X9200

Outdated or Corrupted drivers:11/21

Device/DriverStatusStatus DescriptionUpdated By Scanner
Intel(R) Q963/Q965 Processor to I/O Controller - 2990Up To Date and Functioning
Mice And Touchpads
Microsoft Logitech USB WheelMouseUp To Date and Functioning
Usb Devices
Google ADBCorrupted By A4tech Kb(s)-7
Sound Cards And Media Devices
Logitech Webcam C170Up To Date and Functioning
AVerMedia AVerMedia H789 PCI-E Hybrid DVB-TUp To Date and Functioning
Realtek ATI HDMI AudioCorrupted By A4tech Kb(s)-7
Network Cards
Intel(R) Centrino(R) Wireless-N 2230Outdated
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
ALi Coporation ALi M5229 PCI Bus Master IDE ControllerCorrupted By A4tech Kb(s)-7
Unibrain OHCI Compliant IEEE 1394 Host ControllerCorrupted By A4tech Kb(s)-7
PACE Anti-Piracy USB iLok DriverCorrupted By A4tech Kb(s)-7
Mad Catz Programmable Support for MouseCorrupted By A4tech Kb(s)-7
ENE ENE CB1410 Cardbus ControllerUp To Date and Functioning
Point Grey Research Texas Instruments OHCI-konformer IEEE 1394-HostcontrollerUp To Date and Functioning
Nokia Nokia USB Phone ParentCorrupted By A4tech Kb(s)-7
Cameras, Webcams And Scanners
Canon CanoScan LiDE 110Corrupted By A4tech Kb(s)-7
Video Cards
NVIDIA NVIDIA GeForce4 MX 440Corrupted By A4tech Kb(s)-7
Input Devices
Lenovo USB DeviceUp To Date and Functioning
Port Devices
PROLiNK PROLiNK Voice Device (COM9)Up To Date and Functioning
Sony Digital Flat Panel (1024x768)Up To Date and Functioning
Mobile Phones And Portable Devices
Acer NOKIACorrupted By A4tech Kb(s)-7

Scan performed on 3/27/2017, Computer: LG X200-L.AGFLZ

Outdated or Corrupted drivers:7/22

Device/DriverStatusStatus DescriptionUpdated By Scanner
AMCC AMCC RAID 7000/8000 ManagerUp To Date and Functioning
Mice And Touchpads
Microsoft HID mouseUp To Date and Functioning
Synaptics PS/2 Compatible MouseOutdated
Usb Devices
YuLong USB Mass Storage DeviceOutdated
Philips Philips SPC620NC PC Camera; Composite A/V DeviceUp To Date and Functioning
Intel(R) USB 2.0-MTT-HubOutdated
Sound Cards And Media Devices
VMware Creative AudioPCI (ES1371,ES1373) (WDM)Outdated
Silicon Integrated Systems Corp.(1.16.01) SiS 7018 Audio DriverUp To Date and Functioning
Network Cards
Intel(R) Centrino(R) Advanced-N 6250 AGNCorrupted By A4tech Kb(s)-7
Microsoft Keyboard Device FilterUp To Date and Functioning
Hard Disk Controller
Intel(R) 8 Series/C220 Series 2 port Serial ATA Storage Controller - 8C08Up To Date and Functioning
Intel Intel(r) AIM External Flat Panel Driver 2Up To Date and Functioning
ULi Intel(R) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CDUp To Date and Functioning
National IrDA Fast Infrared PortUp To Date and Functioning
Intel Port racine express PCI Intel(R) 82801FB/FBM PCI -2662Up To Date and Functioning
Point Grey Research Texas Instruments OHCI-kompatibel IEEE 1394-vertskontrollerUp To Date and Functioning
Cameras, Webcams And Scanners
Brother Brother DCP-115C USBUp To Date and Functioning
Video Cards
Intel(R) HD Graphics 4000Corrupted By A4tech Kb(s)-7
Input Devices
Hewlett-Packard HP Link-5 micro dongleOutdated
Port Devices
Nokia Nokia Asha 311 USB Serial Port (COM5)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
Driver ModelOriginal Upload DateLast ModificationDriver FileFile SizeCompatible Computer ModelsAvailabilty To Instalation Manager
A4tech Kb(s)-7 VGN-TZ31XN_B, Gigabyte M1028, Packard Bell IMEDIA B6363, ALFATRON SpA HX610, Mustek KDZ68DBM, HP PN176AA-ABN, Acer Extensa 2900E, Sony VGN-P45GK_W, HP DT301A-ABM T450M, IBM 6221MFG, Supermicro X9DR3-F, HP HP Compaq dx6100 MT, HP EP245AA-ABU, Acer TM6595, Lenovo ThinkCentre M58e, HP GT690AA-AB4 IQ780d, Gigabyte G31M-ES2C, IBM ThinkPad R50e, and more.
A4tech Kb(s)-7 2.127739/11/201412/29/2016dxdwtp-2.12773.exe219kbPanasonic CF-29NAQC9BM, LG T1-5224A3, HP FL210AA-ABV, Fujitsu FMVA42EWKS, IBM 2668W13, Panasonic CF-50MB2FDKM, Panasonic CF-53JAWZYFN, HP Presario 2200, NEC PC-VN570BS1YB, Lenovo ThinkPad Z61t, Sony VGN-SZ76GN_B, HP HP Pavilion g6-1b34ca, Gateway W4605, and more.
A4tech Kb(s)-7 21.192.182/16/201512/28/2016a4tech_kb(s)-7-21.192.18.exe144kbToshiba Satellite C660-2KF, WIPRO WNBOBM4930-EK-0015, Dell Vostro 1550, Toshiba Satellite C50-A491, Sony VGN-SZ6RXN_C, HP Pavilion dv1000, LG R580-U.ARD5WT, Lenovo 43772KM, NEC PC-LL3508D, Toshiba SATELLITE C55-A-16Z, WIPRO WIV37455-1090, Fujitsu D2812-A1, IBM ThinkPad T41, TYAN S2895, Alienware Alienware X51, IBM 2373NG8, Olidata OLIDATA, and more.
A4tech Kb(s)-7 2.1287710/25/201412/30/2016a4tech_kb(s)-7-2.12877.exe192kbToshiba NB100, ARIMA W651DI, Dedicated OEM-A4501-00, Compaq DA234A-ABA 6400nx NA910, WIPRO WSG37455V-0008, Intel SBD2B014, HP P6755de, Lenovo ThinkPad Helix, Toshiba SATELITE, Intel Edusmart P-168, HP KP335AA-UUW, Fujitsu LIFEBOOK C1410, ECS Z77H2-A2X Deluxe, Samsung SQ45/Q70C/P200, Lenovo 7665VEH, Fujitsu FMVWMS277, Lenovo 73952GL, and more.
A4tech Kb(s)-7 32.191.12/6/201512/27/2016-32.191.1.exe125kbFujitsu FMVF56HDWY, IBM ThinkPad A30, Toshiba SATELLITE PRO T130, Compaq GB376AA-ABE SR2237ES, IBM 2658MJJ, HP 23-d050xt, NEC PC-MY26XHZE1, HP G5360fr-m, Sony VGN-FE24SP, Gateway SX2360, Samsung SQ45S70S, HP G5317de, Fujitsu FMVDJ3A0E1, and more.
A4tech Kb(s)-7 2.11.19641/16/201512/29/2016xgybktphm-2.11.1964.exe101kbIBM 8215EKU, HP 700-014eg, Compaq DM174A-ABA S5300NX NA311, Packard Bell Ixtreme i7650, Toshiba SATELLITE P50-A-14L, ECS H57H-MUS, Dell PowerEdge R220, Gateway M-7343U, ASUS 1001PX, IBM 621936U, HP DC484A-ABA 894C, Panasonic CF-18KHVCBBF, NEC PC-LL770HG, and more.
A4tech Kb(s)-7 7041.11.111/11/201412/28/2016a4tech_kb(s)-7-7041.11.1.exe202kbIBM D945PLRN, Sony VGN-NW24MG, HP Pavilion P6640F ABC, Lenovo ThinkPad X301, Seneca Pro234499, HP Hp pavilion ze4900, Lenovo 10385DG, HP G5383sc, Dimotion PCDBS44H, HP P6725de, Sony VGN-SZ7AWN_C, Compaq PN124AA-ABU SR1219UK GB440, HP Presario 2500, HP FJ377AA-ABF a6538.f, NEC PC-VY16MRFJAFUX, HP RK570AAR-ABA m7760, Toshiba Dynabook T552/36HRJ, Fujitsu FMVXN0X81, NEC DT000024, and more.
A4tech Kb(s)-7 7330810/16/201412/30/2016a4tech_kb(s)-7-73308.exe147kbPanasonic CF-52GCR42AG, Lenovo 9482W86, Lenovo 1952T60, HP KP332AA-UUW, IBM ThinkCentre S51, Gateway 6840, Sony VGN-B77SP, Panasonic CF-29ETP20KM, HP HPE-375a, Lenovo ThinkPad Edge E530c, Toshiba SATELLITE C55-A-16Z, NEC VERSAE6301 RNF61113695, and more.
A4tech Kb(s)-7 2.132292/12/201512/27/2016a4tech_kb(s)-7-2.13229.exe201kbHP KZ241AA-AR6 p6020l, Fujitsu D2812-A1, MCJ MCJ, HP PW579AA-ABG m7088a, Dell Vostro 1450, AT AT-IQON, Compaq GS255AV-AB4 SR5211CF, NEC PC-VJ22MAUZHTTV, Panasonic CF-Y5KW8AXS, Lenovo 6463Y3W, and more.
A4tech Kb(s)-7 HP d330 uT, HP PL482AA-AB4 w1084d, Sony VGN-B250FP, HP HP Compaq nx6325, Toshiba NB300-10D, Acer TravelMate 8372, Sun Microsystems Munich, Compaq EG217AA-ABG SR1699AN AN540, HP AW010AAR-ABA p6210t, Panasonic CF-19FDGCFWG, EMachines Emachine E725, HP AY690AA-ABM 600-1120la, HP HP PAVILION DV9000, HP GU631AA-UUW, Toshiba SATELLITE C850-1C4, System76 Leopard Extreme, Packard Bell TK36, Toshiba SATELLITE L850-A891, and more.
A4tech Kb(s)-7 3361.18/26/201412/27/2016a4tech_kb(s)-7-3361.1.exe98kbGateway GM5485H, HP HP d330 ST, Sony VGX-TP1DTV, Sony VGN-AW25GJ_H, HP PN119AA-ABU, WIPRO WSG52K55W7-0226, Toshiba Satellite C660-M21U, Acer Extensa 7230, NEC PC-LL750FS1SR, GETAC V100-X, and more.
A4tech Kb(s)-7 VGN-SZ76GN_B, HP HP Pavilion g6-1b34ca, Gateway W4605, Dimotion PCDM4J5P, Gateway GT5226j, GETAC 9270D, Sony SVT1113AJE, Packard Bell IMEDIA H7653, HP Pavilion G70-457CA, Compaq DA255A-ABA 6401RSH NA910, HP KJ416AA-AB4 m9298d, Shuttle SB62V10, Acer AcerPower 8000, Sony VGN-NS15G_S, and more.
A4tech Kb(s)-7 1.104399/2/201412/27/2016hpueumyru-1.10439.exe73kbSony PCG-GRT170, HP Compaq nx9040, YASHI TPower X58, Compaq GC668AAR-ABA SR5110NX, Panasonic CF-74KCJDZAM, Sun Microsystems K85AE, HP ED737AA-ABS, LG LE50-5B142T, Lenovo 73952GL, HP P9843A-ABF 712, and more.
A4tech Kb(s)-7 1.101.1401/18/201512/27/2016a4tech_kb(s)-7-1.101.140.exe65kbDell Latitude 7350, Gigabyte M1022E, LG F1-2227K, Toshiba Dynabook TX/77MBLK, Toshiba Dynabook T552/58HKD, HP PAVILION DV6187, Sony VGN-A215M, Sony VGN-NS160D, HP PS318AA-ABY, HP G5261de, HP KE530AA-ABD a6212de, NEC POWERMATE RD391161295, HP EG601AA-AB1 a1212k, IBM 1831W1U, Sony VGN-SZ7RMN_B, HP PX643AA-ABZ, Sony VGN-NS72JB_W, Sony VGN-AW150Y, and more.
A4tech Kb(s)-7 41.1402.111/5/201412/29/2016a4tech_kb(s)-7-41.1402.1.exe109kbFujitsu FMVXNBLQ2Z, Panasonic CF-53JAWZYFN, Supermicro X7DVL-3, HP RY869AA-ABA m8067c, Gateway MD7321U, HP RX884AA-ABA m8040, LG B50PS.AR5MB3E, Sony SVE14A2V2ES, HP FK861AA-AB0 a6625tw, IBM 2366GG4, Sony VPCZ130GB, Acer Aspire 1820PTZ, Toshiba SATELLITE C855-1NF, MSI MS-7183, Compaq DA309A-B14 6540. BE910, Viglen EQ100, Sony SVE15138CGS, Compaq FJ403AA-AB9 SR5502PT, Toshiba PSKHGL-00C004, and more.
A4tech Kb(s)-7 31.176412/16/201412/29/2016a4tech_kb(s)-7-31.1764.exe139kbWIPRO WIV37455-0863, Dell Studio 1557, Toshiba SATELLITE NB10t-A-103, Compaq PJ688AV-ABA SR1005T NA440, IBM 1843A19, Compaq DT203A-ABF S6400FR FR410, Seneca Pro46956, LG S550-GE6AK, HP PRES NB CQ50-112EO, Sony VGN-NS15G_S, and more.
A4tech Kb(s)-7 H21.11.191.12/4/201512/27/2016a4tech_kb(s)-7-h21.11.191.1.exe131kbToshiba Satellite A100-999, HP PP121AA-ABF m1155.f, Sony SVS1311B4E, HP PX623AA-ABU, Intel LC-92T10, Lenovo ThinkPad L412, Toshiba Satellite A100-386, LG V960-UH50K, IBM 62237BU, LG R510-L.C2O1Z, and more.
A4tech Kb(s)-7 Aspire 7740, MiTAC 9525, Panasonic FZ-G1AAHJXRM, Intel Intel G33 Series, Fujitsu FMVXN6EG2Z, Gateway GZ7108TV, Sony VGN-SZ13GP_B, Lenovo IdeaPad S10e, NEC Express5800/54We [N8000-246, Intel S1200RP_SE, Lenovo ChiefRiver Platform, HP PS227AA-ABE, and more.
A4tech Kb(s)-7 V1.14212/1/201412/28/2016a4tech_kb(s)-7-v1.142.exe69kbSony VNG-FE25TP, Toshiba Dynabook T552/36FWK, Sony VGN-SZ670N, Acer Aspire5740, Gigabyte 946GM-S2, Sony SVP1322R4RBI, WIPRO WIV37455-0863, Compaq RK539AAR-ABA SR2173WM, Sony VGN-UX50, HP HP Envy 6-1180ca, IBM IBM System x3400 M3 Server -[7379Z7X, Toshiba SATELLITE C855-20M, HP G6-1250se, HP HP Pavilion dv5 Notebook PC, Packard Bell IPower X1001, and more.
A4tech Kb(s)-7 202.128/31/201412/28/2016a4tech_kb(s)-7-202.12.exe160kbPanasonic CF-W7DWJQJR, Sony VGN-G11XRN_B, IBM 622351U, Viglen VIG430P, Compaq GB376AA-ABE SR2237ES, LG G1-223YA2, LG X110-L.A7B1A2, Gateway DX441B, HP AY020AA-ABL p6320f, NEC PC-LL750TG, and more.
A4tech Kb(s)-7 K2.1371.181/11/201512/28/2016a4tech_kb(s)-7-k2.1371.18.exe181kbHP DF179A-ABZ a130, Toshiba Satellite A100-626, LG K1-337AB1, HP EG158AA-ABF m7171.f, HP PS282AA-ABZ, Toshiba SATELLITE L850D-130, Sony VPCSA3S9R, Fujitsu LifeBook N6470, HP Pavilion zv5000, HP HP Compaq nx6120, Gigabyte MSH61PI-EX, LG LS75-26SLCE1, Toshiba Dynabook Qosmio G10/390LS, Lenovo 1S16800336100W2, Intel SE7505VB2, IBM 8115KUT, and more.
A4tech Kb(s)-7 332.17211/7/201412/30/2016a4tech_kb(s)-7-332.172.exe136kbWIPRO WIV37455-1090, Fujitsu D2812-A1, IBM ThinkPad T41, TYAN S2895, Alienware Alienware X51, IBM 2373NG8, Olidata OLIDATA, TAROX Business 5000BM, Dimotion PCDBS09P, HP HP EliteBook 8530w, and more.
A4tech Kb(s)-7 421.18610/16/201412/29/2016a4tech_kb(s)-7-421.186.exe92kbASUS F80S, Gigabyte G41MT-D3V, NEC PB12V00106, Dell Vostro 1550, Sony VGN-CS62JB_R, HP KE530AA-ABD a6212de, Sony VGN-Z21WN_B, AT TRILINE PROFI I48, NEC PC-VY25AAZR7, NEC PC-VK26MDZCE, Gateway FX7026, NEC PC-LL5006D2DR, Fujitsu FMVXDXF74, ASUS ESC4000 G2 Series, Acer Aspire M1641, Sony VGN-NS90HS_6_W, Sony VGN-CS36SJ_R, Apple Macmini1,1, Sony VGC-LS21N, and more.
A4tech Kb(s)-7 E624891/1/201512/29/2016a4tech_kb(s)-7-e62489.exe50kbIntel Edusmart P-168, Fujitsu FMVF56HDWY, HP HP Compaq 8710p, HP 23-b030ef, OEGStone DB75EN, Lenovo IdeaPad S10-3s, Sony VGN-UX1XN, Intel SBD2B014, Sony VGN-AW150Y, IBM 621936U, Fujitsu AMILO PRO V3515, Toshiba Qosmio F60-10L, Compaq KY718AA-UUB CQ3058HK, Sony VPCCW29FS, HP RJ116AA-UUW, HP RS904AA-ACP, IBM 1831W1U, and more.
A4tech Kb(s)-7 321.1378/30/201412/30/2016a4tech_kb(s)-7-321.137.exe69kbSony VPCEH1Z1R, HP Pavilion ze4600, SAMSUN Q308, Acer Aspire 3810TZG, Toshiba TE5, Uniwill L51AI Serial, LG R580-UP75K, HP DV6 - 3206AX, Compaq GU587AA-ABH SR5235NL, HP BT434AAR-ABA s5603w, IBM 6218Z1H, Acer NC-E1-531-B9604G, ELITEGROUP G713, Panasonic CF-52JE203NW, and more.
A4tech Kb(s)-7 730889/28/201412/27/2016ilhltan-73088.exe102kbLenovo 7358W17, Dell Vostro 1550, Sony VGN-TZ27GN_B, LG RD580-UAD18E, HP PW689AA-ABS D4085.SE, HP D5468AT-ABA GX768AA, HP NQ867AA-UUZ m9650ch, Fujitsu AMILO Li 2727, Lenovo ThinkPad Edge E430, Seneca Pro234499, NEC NEC VERSA ONE, HP P6-2155a, Toshiba Dynabook REGZA PC D732/T7FW, Acer Aspire 4925, HP ES133AA-UUZ, HP FK557AAR-ABA a6602f, MAXDATA Fusion 1000 I, Sony VPCEB15FA, PDS Vector CQ, and more.
A4tech Kb(s)-7 229449/4/201412/28/2016a4tech_kb(s)-7-22944.exe208kbFujitsu FMVNP8A7, HP HP PAVILION DV6000, NEC PC-MY25XRGJTCBE, ASUS 1001PQ, NEC PC-GL26ES9LE, Seneca Pro354493, IBM System x3650 M4: -[7915AC1, HP HPE-550be, Lenovo ThinkStation S30, Zoostorm 7010-0246A, and more.

Please Note: There are particular operating systems known to have problems with A4tech Kb(s)-7:
  • Windows Vista Enterprise (Microsoft Windows NT 6.0.6000.0)
  • Windows 8 Pro
  • Windows 7 Service Pack 1 (Microsoft Windows NT)
  • Windows Vista Ultimate
  • Windows 7 Home Premium
  • Windows XP Tablet PC Edition
  • Windows XP Professional x64 Edition
  • Windows 7 Starter
  • Windows XP Tablet PC Edition
If you encounter problems with the direct download for these operating systems, please consult the driver download manager for the specific A4tech Kb(s)-7 model.
Laptop A4tech Kb(s)-7Tablet A4tech Kb(s)-7Download A4tech Kb(s)-7Upgrade A4tech Kb(s)-7Update A4tech Kb(s)-72017 A4tech Kb(s)-7Free A4tech Kb(s)-7Data A4tech Kb(s)-7Info A4tech Kb(s)-7Help A4tech Kb(s)-7Guide A4tech Kb(s)-7Comments A4tech Kb(s)-7Windows 10 A4tech Kb(s)-7Vista A4tech Kb(s)-7Windows 7 A4tech Kb(s)-7Install A4tech Kb(s)-7