Corsair ValueSelect 4GB (1x4GB) DDR4-2133 CL15

Bare-PCB memory with no heat spreader, built for office desktops and bulk system integrators. Reliable, inexpensive, no overclocking headroom. Kit: 4GB (1x4GB) DDR4 at 2133 MHz, CAS latency CL15. Finish: Black. Form factor: 288-pin DIMM (desktop). Rated speed requires enabling XMP 2.0 in BIOS; the kit boots at JEDEC 2133 MHz until you do. Seller note: check the vX.XX version code on the module label — v3.xx is Micron, v4.xx is Samsung, v5.xx is SK Hynix. Samsung B-die (v4.31/v4.32) DDR4 and Hynix DDR5 sticks are the ones overclockers pay extra for. Condition and exact IC revision are verified before listing goes active.