One new Optical Drive Caddy Bezel Front Panel Cover + Tail Mounting Metal Bracket for 

HP ProBook 6440b 6445b 6450b 6455b 6550b 6555b Notebook PC

Dimension: 12.7 mm x 2mm x 14mm (WxDxH) . 

G - Base 12.7mm standard bezel, it will fit any 12.7mm thickness drives.

Shipping: Local seller USPS Ship and delivered in 2-3 days USA.