Brand New Sealed Unit * ---Hynix HMAA8GL7AMR4N-VK Memory Module ---Form Factor - LRDIMM ---Capacity - 64GB ---Bus Speed - PC4-21300 (DDR4-2666) ---Pins - 288-Pin ---Error Correction - Load Reduced ECC ---Cas - CL19 ---Rank - Rank 4 ---Voltage - 1.2 V.