In good optical condition. Only tested on power, and it powers up.Not tested on functionality due to not having the correct equipment, therefore sold for parts or not working. The Fairchild 4880 instrument coupler converts the Datachron high speed parallel data output into the standard IEEE-488 (HPIB) interface format. This conversion of the Datachron electrical wiring and timing interface to the IEEE-488 (HPIB) standard interface simplified the connection between the Datachron and the HP9915A computer.The transfers from the Datachron to the HP9915A are high speed; and any need for stacked data buffering of closely spaced timing signals is eliminated.The power cable is not included. Dimensions: 29 x 22 x 11 cmWeight: 2. 7 KgSee pictures for more details.Sold as is We ship worldwide.-Shipping in the EU up to 30 KG (max)-Shipping outside of the EU up to 20 KG (max)Please note: ’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The