Primary Function: USB Vag-Com interface cable. OBDII Plug: J1962 16-Pin Male (to Car). USB Port enabled. Operating Software Compatibility: Windows 98SE / ME / 2000 / NT and XP. Supports terminal (K) bus communication. Terminal (L) ignition for waking up car computing system (ECU) engine control unit. Has 3 different protocols with same OBD2 connector including ISO/KWP， VPW， PMW. Refer to your car user manual or check with your car dealer or local mechanic whether your car is compatible with this product. With this product，you can install the software on a vehicle by laptop or PC， to make fault diagnosis and parameter setting. Economical & practical， It is the best choice for your car.FeaturesMore features， small volume & lightweight.New 7 PIN / SKC codes match the anti-theft system that installed mobilizer VW/Audi/Seat/Skoda car keys (or third-generation anti-theft).Can simultaneously observe the three sets of data stream.Access to running the new KWP-2000 protocol control module (2002 + Teves Mk60 ABS， most of the 2004 + modules).Super-level isolation (>1000V)， protect your computer will not be compromised.Display current sensor data， including:Engine RPMCalculated Load ValueCoolant TemperatureFuel System StatusVehicle SpeedShort Term Fuel TrimLong Term Fuel TrimIntake Manifold PressureTiming AdvanceIntake Air TemperatureAir Flow RateAbsolute Throttle PositionOxygen sensor voltages/associated short term fuel trimsFuel System statusFuel PressureSupport modelSantana 2000 3000;Audi 100 200 80 90 A4 A6 A8;Era Superman; Polo (Except 02/03 paragraph POLO );BoraJettaBeetleGolfPassatSEATSmall red flag;All other public:Audi models( 5051 does not support CANBUS models， such as the Audi A6L)Speed TengCaddyTouranOctaviathese models please buy 5053.SpecificationsCable length: 1.5mCar side: OBDII standard plugPC side: USB interfaceCircuit insulation sealed: waterproof， anti-static， harsh environments Color: BlueItem Size: 8.8 * 4.5 * 2cmPackage Size: 20 * 15 * 2cmItem Weight: 102gFree software: Scantool.netGM Mode 22 Scan Tool by TerryOBD Gauge for PalmOS and Pocket PC by Dana PetersOBD Logger by Jonathan SenkerikOBD-II ScanMaster by Wladimir Gurskij (ScanMaster 3.52 - local copy)obd2crazy.comOBD2 Scantool by Ivan AndrewjeskiOBDII for ELM322 by David HuffmanpyOBD by Donour Sizemore for MacOSX and LinuxRDDTC by Pete CalinskiReal Scan by Brent HarrisScanTest for Pocket PC by Ivan Ganev aka a-serwOBD by WDTCompatiblityAudi Models:- Compatible: A2 / A3 / A4 Cabriolet / A6 / A8 / S2 / S3 / TT- Not Compatible: 80 / 100 / 200 / A3(8P) / A4(B7) / A6(C6/4F) / A8 / A8L(D3/4E) / Q7SEAT Models:- Compatible: Alhambra / Altea / Arosa / Cordoba / Ibiza / Inca / Leon MK 1 / Leon MK 2 / Toledo- Not Compatible: Altea (5P) / Leon (1P) / Toledo (5P)Skoda:- Compatible: Fabia / Felicia / Octavia MK 1 / Octavia MK 2 / Superb- Not Compatible: Octavia (1Z)VW:- Compatible: Beetle / Bora / Caddy / Corrado / Golf MK2 / Golf MK3 / Golf MK4 / Jetta MK3 / Jetta MK4/ Lupo / Passat MK3/ Passat MK4 / Polo MK3 / Polo MK4 / Touran / Touareg / Transporter T3 / Transporter T4 / Transporter T5.- Not Compatible: Caddy (2K) / Golf MK5 (1K) / Golf Plus / Jetta MK5 (1K) / Passat MK5 (B6) / Passat MK6 (B6) / Phaeton / Touran (1T)Package Contents1 x VAG-COM KKL 409.1 OBD2 USB Cable.1 x CD Software.