Compatible with AMD TRX50 Workstation Motherboards. Overclocking E.X.P.O Profile Product Specification- Memory Type: DDR5 OC R-DIMM (ECC Registered DIMM) Chip: Hynix IC Pin: 288 Pin Memory Capacity: 64GB (16GBx4) Speed: 6600MHz (PC5-52800) Latency: CL34 Equipped with high quality Hynix IC. Each IC is tested rigorously with auto sorting equipment designed by v-color. FOR WORKSTATION MOTHERBOARDS. NOT COMPATIBLE WITH DESKTOP PC AND LAPTOP.