HP JH155A, Expansion module, FF Plug-in module, Port 40Gb Ethernet x 2, Data Link Protocol 40 Gigabit LAN, Data Transfer Rate 40 Gbps, Designed For HPE 5510 2-port QSFP+ Module. The HPE JH155A is a 2-port QSFP+ Expansion Module specifically designed to use for HPE 5510 2-port QSFP+ Module. It features a 40Gb Ethernet x 2 Ports, 40 Gigabit LAN data link protocol and 40 Gbps data transfer rate.