This HP 726717-B21 compatible 4GB DDR4-2133MHz single rank registered ECC 1.2V 288-pin CL15 factory original RDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). Our products are also guaranteed by federal law to not affect or void OEM warranties.

• Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency
• Up to 2133 MHz speed with registered signal for playing the latest games and using heavy software
• 4 GB of memory to refine your computer's performance
• DDR4 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation
• 1 x 4GB modules for quick access and retrieval of data and information to ensure maximum usability
• 288-pin for faster, dependable performance and better access to data and information
• CL15 CAS latency for reliable, fast response and improved performance
• Server device support for your RAM Module to allow enhanced system performance and reliable memory solution
• RDIMM form factor with 288-pin and 4 GB memory size effectively reduces minimizes the load on the server memory BUS to ensure maximum productivity
• Registered signal processing allows high speed and accuracy to allow maximum r