This Dell® A4849740 compatible 4GB (2x2GB) DDR2-800MHz DDR2-800MHz Dual Rank Unbuffered 1.8V 200-pin CL5 SODIMM 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.

• SoDIMM 4 GB of memory to refine your computer's performance
• 200-pin-pin DDR2-800/PC2-6400 interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computer's performance
• 800 MHz of memory speed with Unbuffered signal and CL5 latency makes your computer great at multitasking