Check the listing for details. HP E1683A Sonet/SDH Payload VT/TU Receiver VXI Module C- Size. Condition: For parts or not working. Listed at 49.99 USD. HP E1683A Sonet/SDH Payload VT/TU Receiver VXI Module Used card. Sold untested .I do not have a mainframe, or the expertise to test this item. Selling it "as is" Working condition is unknown so we are selling it at a reduced cost. No warranty is offered and no returns will be accepted. Any repairs that may be needed are the sole responsibility of the buyer. By purchasing buyer is agreeing to these terms.