Cisco C4K-SLOT-CVR-E=. Product colour: Stainless steel. Compatibility: Catalyst 4500 E. Size: 48.3 cm (19")

Note To ensure the proper air flow and to maintain EMI protection, make sure that there is a blank module filler plate (C4K-SLOT-CVR-E) installed in any unused chassis slot. If a chassis slot are left open, air circulation is disrupted and the fans may not be able to adequately cool the other modules in the chassis.