OWC 4GB DDR3 1600 CL11 1Rx8 204-pin 1.5V Non-ECC SODIMM memory upgrade

Targeted 4 GB DDR3 SODIMM for select ThinkPads

This 4 GB DDR3 1600 CL11 SODIMM fits Lenovo ThinkPad T530i, W530, X230, X230i, X240 and X240s models that accept 204-pin unbuffered non-ECC modules. It is aimed at owners of those systems who need a single-slot capacity increase without changing voltage or form factor.

Replaces slower or smaller DDR3 modules

The upgrade is worth it when the existing memory runs below 1600 MT/s or totals less than the platform maximum and the workload involves multitasking with several applications open. It will not help systems that already run matched 1600 MT/s pairs at the full supported capacity or that require registered or ECC memory.

Steady throughput under sustained multitasking loads

JEDEC-standard 1.5 V operation keeps power draw consistent during long sessions with multiple browser tabs, office suites or virtual machines. The single-rank 1Rx8 organisation avoids the timing penalties that can appear with dual-rank modules under continuous memory pressure, so responsiveness remains stable over hours of use.