64GB - Memory Capcity
DDR5 4800Mhz - Type and Speed
2R - Rank (Single, Dual, Quad and Octo)
4 - Data Bit (Organization)
RDIMM - Module Type
ECC - Error-Correcting Code
1.1V - Voltage
Information
Lenovo Memory
64GB 2RX4 DDR5 4800Mhz RDIMM RAM
4X77A81442 - 64GB 2Rx4 TruDDR5 4800MHz RDIMM-A