The HP B13YTAV is a configurable (CTO) product, suggesting a built-to-order system with aluminum chassis. The 'PKS ALU' likely refers to a premium kit featuring an aluminum enclosure. It includes FWLAN (likely referring to built-in Wireless LAN) and an unspecified identification (ID).
Because it is a configurable product, the exact specifications will vary depending on the configuration chosen at the time of purchase.
B13YTAV - Hp CTO PKS ALU FWLAN ID