OWC 128GB (4x32GB) DDR4 3200MHz CL22 ECC SODIMM 1.2V 260-pin laptop RAM

128GB DDR4 ECC SODIMM Kit

This OWC kit provides 128GB of DDR4 3200MHz ECC memory across four 32GB modules. It is built for laptops, all-in-one systems and NAS devices that support 260-pin SO-DIMM slots and can use unbuffered ECC memory. The CL22 latency and 1.2V operation follow JEDEC standards for broad compatibility.

Check Slot Count and ECC Support

Verify that your system has four available 260-pin SO-DIMM slots and that its memory controller accepts unbuffered ECC modules. Many consumer laptops only offer two slots or disable ECC functionality, so this kit will not work in those machines. The modules are backward compatible with 2933MHz, 2666MHz, 2400MHz and 2133MHz speeds if the platform requires a lower rate.

Fits Four-Slot ECC Platforms

Populating all four slots delivers the full 128GB capacity in a dual-channel configuration where the platform supports it. The low-profile design without a heat spreader helps the modules fit tight spaces inside compact laptops or NAS enclosures. Using ECC memory adds data-integrity protection for workloads such as file servers or virtualization hosts that benefit from error correction.