This HP 593913-B21 compatible Factory Original Tier 1 - 8GB DDR3-1333MHz DR 1.5V RDIMM 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. 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 the Magnuson-Moss Warranty Act to not affect or void OEM warranties.

• 8 GB of memory to heighten your computer's performance
• DDR3 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
• No matter how heavy and numerous the applications that you are using, 1333 MHz memory speed with Registered signal and CL9 latency will run them smoothly