Transcend's JetRam memory modules are manufactured with true ETT grade brand-name DRAM chips that have passed Transcend's 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 2666 Mbps to greatly increase data transmission efficiency by higher bandwidth of up to 21GB/s. Operated at a nominal voltage of just 1.2V Transcend's 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.An economical memory upgrade option for most popular desktop and notebook models out there Transcend's DDR4 DRAM modules are engineered with the finest chips available at the same time stringently tested to make sure they deliver optimal speeds endurance reliability and compatibility across platforms.For desktops and laptopsTranscend offers a comprehensive range of DDR4 standard long-DIMMs and compact SO-DIMMs to enhance memory bandwidth for desktops and laptops alike. All modules are tested across various motherboard platforms and operating systems with achieving maximumcompatibility in mind.Unlock next-gen performanceDDR4 delivers far less response time and application loading time than its predecessors DDR3 DDR2 and DDR. It is higher in RAM density but lower in power consumption having brought energy requirement further down to 1.2V making it best suited for memory-intensiveapplications.Quality chips fully tested for reliabilitySelected from only the finest brand-name DRAM chips available Transcends memory modules undergo countless in-house stress tests and evaluations to ensure they deliver absolute quality and reliability.