Specifications: 1. Usb connector plugs into most modern laptops! (usb 1.1 or 2.0) 2. Compatible with the latest cars which require a direct can connection for diagnostics including all golf-5 platform cars and latest audi a3, a6 and a8. 3. Protocol timing indistinguishable from a real vag/vas tool. Works reliably even with difficult control modules such as the 1991-1994 1z audi tdis and the 1993-1994 audi 2.6l with hella ecu. 4. Instantly alerts the user if either the k/k1 line or the l/k2 line is shorted to ground or vbatt. 5. Full support for dual-k lines found in new (b6/8e chassis audi a4 and 2002+ audi a6. 6. Fully backwards compatible with older cars using a single k-line or k plus l.