Part Number KPXI-RDI-8-16 Pci Extensions For Instrumentation Pxi Products in stock with ready to ship. Get an instant quote for Keithley Instruments part number KPXI-RDI-8-16 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for KPXI-RDI-8-16. Our dedicated account manager will get back to you within 15 minutes.