Part Number UM28 having (CAGE Code 0CRU6) and FSC 5998 Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware in stock with ready to ship. Get an instant quote for UM28 Extender Card Electronic Test by At And T Corp. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.