A-Tech 16GB DDR4 2666 ECC RDIMM 1Rx4 CL19 1.20V Server RAM

Server-grade 16 GB DDR4 module

This registered ECC DIMM delivers 16 GB of DDR4 memory at 2666 MHz with CL19 latency. It is built for servers and workstations that require error correction and signal buffering for data integrity. The module runs at the standard 1.20 V DDR4 voltage. Buyers who need non-ECC or unbuffered memory for consumer desktop boards cannot use this product.

Fits 288-pin DDR4 RDIMM slots

The stick plugs into a standard 288-pin DDR4 RDIMM socket on a compatible server or workstation motherboard. Its registered design reduces electrical load on the memory controller, freeing headroom for larger total capacities across multiple slots. Systems that only accept UDIMM or SO-DIMM form factors will not accept this module.

Sustained operation at rated speed

Under continuous workloads the module maintains its 2666 MHz data rate and 1.20 V supply without throttling. ECC circuitry corrects single-bit errors on the fly, preserving stability during long compute runs. Workloads that exceed the single 16 GB capacity will require additional modules to avoid paging.