This HP 647907-B21 compatible 4GB DDR3-1333MHz Dual Rank Unbuffered ECC 1.35V 240-pin CL9 factory original UDIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. 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 1333 MHz speed with unbuffered signal and CL9 latency for playing the latest games and using heavy software
- 4 GB of memory to refine your computer's performance
- 240-pin-pin DDR3 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rate
- 1 x 4GB modules for dependable storage efficiency and maximum convenience
- 240-pin for optimal performance and maximum reliability
- CL9 CAS latency for faster, dependable clock cycles which allows quick access and retrieval of data and information
- DIMM form factor with 240-pin and 4 GB memory size effectively lessens the electrical load on the memory controller to allow maximum feasibility
- Unbuffered signal processing for dependable programmability of the processor for easy optimization of digital signals
