HPE - expansion module - HMIM - 1000Base-T x 4

HP MSR4000 SPU-300 Service Processing Unit, with 4 onboard copper GE, 4 SFP, 1 SFP+, 2 VPM slots, 4GB DDR3 memory default, full software features supported, used for data forwarding, encryption/decryption, and analyzing/filtering of data packets.