Transcend's Jet Ram memory modules are manufactured with true ETT grade br&-name DRAM chips that have passed Transcend's strict screening process & rigorous environmental testing The modules provide excellent compatibility & fully-tested reliability which is ideal for PC upgrade at an attractive price Each memory module is rated at 2400 M Hz to greatly increase data transmission efficiency by higher bandwidth of up to 19 G Bs Operated at a nominal voltage of just 12V Transcend's DDR4 U-DIMM Jet Ram memory ensures that both operating temperature & electrical load on the memory controller can be reduced in order to save up to 40 of energy compared to standard DDR3 modules offering 15V Memory Capacity 4GB (1 x 4GB) Memory Type DDR4 Module Type SODIMM Memory Speed DDR4-2400 M Hz Pin Configuration 288-pin Registered Unbuffered Unbuffered Error Correction Non-ECC CL-t RCD-t RP-t RAS CL17 12V Heat Sink Yes Working Voltage 12v