This auction is for a Tektronix TLA 7M4 136-Channel Logic Analyzer Module (s/n B010325; 2GHz Timing / 100MHz State /512k Depth; Firmware Version 1.0), as shown. It is in good working condition, and it comes with a Calibration Certificate (Calibration Date: Oct 6, 2008; In Service Date: Feb 17, 2009, Calibration Due Date: Feb 17, 2010). It comes with many accessories, as shown. Please see the last photo below for a complete list of accessories included.