Check the listing for details. Keithley 7071-4 General Purpose Dual 4x12 Matrix Card for Keithley 707 or 708. Condition: Used. Listed at 1250.00 USD. Condition & Description:3 Units available price is per oneList price : $4090 Our Price: $1250Two independent 4x12 matrix switches3-pole switching (HI, LO, GUARD)Connect to general purpose analog backplaneConfiguration easily adapted with jumpers4x24 or dual 4x12 configurationCompatible with Models 707A and 708AAccessories Supplied: Screw terminal adapter for 4×24 configurationThe Keithley 7071-4 Dual 4x12 General Purpose Matrix Card provides the capability to expand the number of columns that the Model 707A will support to a maximum of 720 in five 707A mainframes. This matrix card has two banks of four signal paths that connect through jumpers to the general purpose analog backplane in the 707 or 707A mainframe for automatic interconnect between cards. Jumpers may be removed to isolate any 4x12 matrix segment or repositioned to cascade segments into a 4x24 configuration. Shipping$45 within the US International shipping is via ebay global shipping Payment We will accept payment for this item by company check with approved credit, cashier’s check, wire transfer and Paypal ReturnsPlease note that shipping and insurance costs are non-refundable. Make sure that you check out our other auctions for more great deals on test and measurement equipment.