MSR4000 SPU-100 service processing unit - Service Processing Unit (SPU) with 2GB DDR SDRAM, four combo ports (either 1000M BASE-T RJ45 or 1G SFP ports), two USB ports, and two internal VPM module slots - SFP ports accepts both 100M and 1G transceivers
HPE FlexNetwork MSR4000 Router Series
HPE Router Processing Modules