A-Tech Supermicro Certified 16GB DDR4 2666 ECC RDIMM 1Rx4

Supermicro Certified DDR4 RDIMM

This 16 GB registered ECC module is built for Supermicro servers and workstations that require validated memory. It runs at DDR4 2666 with a CAS latency of 19 at the standard 1.20 V. The Samsung 1Rx4 chipset and 288-pin RDIMM form factor ensure signal integrity in multi-DIMM configurations.

Upgrade from unbuffered or lower-capacity DIMMs

Replacing non-ECC or single-rank unregistered sticks adds error correction and registered buffering, which become essential once a platform populates four or more slots per channel. The jump is worth it when workloads demand data integrity and the motherboard Qualified Vendor List includes the MEM-DR416L-SL04-ER26 part number.

16 GB single-rank capacity headroom

One module delivers 16 GB at PC4-21300 bandwidth, leaving additional DIMM slots free for future expansion up to the platform limit. It comfortably handles virtualization hosts, database buffers, and compile farms that fit within the installed capacity. Systems needing more than the available slot count can support will require higher-density modules.