HP 672633-B21 16GB DDR3-1600MHz 2Rx4 ECC RDIMM (672612-081 / 672612-181) 887758348642 It provides the rear chassis

It provides the rear chassis dual-fan module required for proper airflow and thermal management in the HP Z820 high-end workstation

4 internal ports

Part Number / Model: ST2000NM0033 (Constellation ES

Type: 8-bay 3

which helps to ensure data stays safe even if dropped while operating

HP 672633-B21 16GB DDR3-1600MHz 2Rx4 ECC RDIMM (672612-081 / 672612-181) 887758348642 It provides the rear chassisThe HP 672633 B21 (672612 081 672612 181 672631 B21) is a 16GB (116GB) Dual Rank 4 PC3 12800R (DDR3 1600MHz) 1. 5V ECC Registered (RDIMM) memory module for HP ProLiant servers. It provides 16GB of DDR3 1600 RDIMM capacity for HP ProLiant BL460c and WS460c Gen8 and compatible servers requiring 16GB 1600MHz ECC RDIMM memory expansion. Part Number: 672633 B21 (alt: 672612 081, 672612 181, 672631 B21) Capacity: 16GB (116GB) Type: DDR3 1600 (PC3 12800R)