Part No: 46W0779 - IBM 16GB PC3-14900 DDR3-1866MHz ECC Registered CL13 240-Pin DIMM Dual Rank Memory Module

Capacity: 16GB
Type: DDR3 (Double Data Rate 3)
Speed: 1866MHz (PC3-14900)
Error Correction: ECC (Error-Correcting Code) – helps detect and correct memory errors to ensure data integrity.
Form Factor: 240-Pin DIMM (Dual In-line Memory Module)
Rank: Dual Rank – refers to the memory module having two sets of memory chips, which can improve performance.
CAS Latency: CL13 – the number of clock cycles it takes for the module to access a specific data set.