MAC Mastertech ET2100MT, made by Vetronix and the same as Vetronix MTS3100, except it does not have a back-lit screen. Has 2003 v3.5 operating system with a 2002 mass storage card, Comes with OBD2 cable, OBD/ALDL for GM, Ford, Chrysler. Also includes the Enhanced Diagnostic Module(oscilloscope attachment), good for graphing waveforms and ignition. OEM level diagnostics for GM and one of the only tools ever made capable of resetting the IAC on older GM engines such as the 3.1L "T" engine. Has brand new batteries in battery pack. Does not include power supply/cord, but uses the same power cords as the GM Tech2 and OTC Genisys scan tools(listed below), so they are inexpensive and easy to find. No case, only includes parts shown in pictures.

AC & DC power supplies can be bought at these links or other stores on ebay:
http://www.ebay.com/itm/NEW-Power-Supply-for-GM-Tech-2-AC-DC-Battery-Charger-Adapter-OTC-Bosch-Vetronix-/271475764400

http://www.ebay.com/itm/GM-Tech-2-Replacement-DC-Power-Supply-Adapter-Cable-OTC-BOSCH-Vetronix-KentMoore-/232283086586