Transcends JetRam memory modules are manufactured with true ETT grade, brand-name DRAM chips that have passed Transcends strict screening process and rigorous environmental testing. The modules provide excellent compatibility and fully-tested reliability, which is ideal for PC upgrade at an attractive price. Each memory module is rated at 2666MHz to greatly increase data transmission efficiency by higher bandwidth of up to 21GB/s. Operated at a nominal voltage of just 1.2V, Transcends DDR4 U-DIMM JetRam memory ensures that both operating temperature and electrical load on the memory controller can be reduced in order to save up to 40 of energy compared to standard DDR3 modules offering 1.5V. TRANSCEND 4GB JM DDR4 2666MHz U-DIMM 1Rx8 512Mx8 CL19 1.2V Memory type DDR4 Coincidence No Memory capacity 4096 Learn more Voltage: 1.2V Memory bus frequency 2666 Memory type UnbufferedNon-EXC Number of bundled memories 1 Memory Transcend 4GB JM DDR4 2666MHz U-DIMM More information Product code Jm2666hlh-4g EAN 760557842637 Weight 0.0200 Producer Xerox - genuine supplies Color Black