Computer Memory Solutions CM5126412800SOSRL 4GB DDR3L 1600 CL11 SO-DIMM memory upgrade

Synology DS218+ memory upgrade

This 4 GB DDR3L SO-DIMM is built for the Synology DiskStation DS218+ and runs at 1600 MHz with CL11 timing. The module uses a 204-pin form factor, operates at 1.35 V and is unbuffered non-ECC with a single 1Rx8 rank. Computer Memory Solutions validates compatibility for this specific NAS model.

Suitable for DS218+ capacity expansion

The stick fits one of the two available slots and adds 4 GB to the system, working toward the 16 GB maximum the platform supports. It is not for users who need ECC error correction, registered modules or a higher-speed grade than DDR3L 1600. Buyers with other NAS models or desktop boards should verify their own requirements first.

4 GB module toward 16 GB limit

One module provides 4 GB of usable memory and the platform can accept up to 16 GB across its two sockets. Performance scales with total capacity for multi-user file services and container workloads. Headroom ends when both slots are filled, so further expansion requires replacing this stick with higher-density modules.