Your search query on "HP Router Modules/Cards/Adapters" returned the following results:

HP J8705A 24 Port Gig-T/SFP PoE ZI Module for 5499ZL Switch Free Shipping (256340289625)

HP J4820B Procurve 24 Port 10/100 XL Module Card Free Shipping TaxInv (256340289328)

HP J4907A Procurve 5300Xl Ethernet Switch Expansion Xl 16 Port Free Shipping (256340289349)

HP J8768A Procurve VL 24 Port Gigabit Ethernet Switch Module for 4200 VL Series (256340289649)

HP J9996A 2 Port 40 GbE QSFP+ w/ MAC sec v3 zl2 Module Free Shipping (256312448826)