t1 slotImproved GPU support up to 140 x 325mm, 3.25-Slot thick. Improved 240 AIO support up to 46mm thickness for Fan and Radiator. Improved Dual Radiator support. Overview: ... The T1Then enter the card type {e1 | t1} slot subslot command for the new confuration information. Step 4. voice-card slot Router(conf)# voice card 1. Enters voice card interface