Two pieces for Crucial 2GB DDR2 667MHz (PC2-5300) CL5 Unbuffered UDIMM 240-Pin Desktop Memory Module CT25664AA667 Computer Memory Size 2 GB RAM Memory Technology DDR2 667 Memory Speed 667 MHz Compatible Devices Desktop About this item Storage Capacity - 2GB Technology - DDR2 SDRAM Form Factor - 240-pin DIMM Technology - DDR2 SDRAM Memory Speed -- 667MHz DDR2-667/PC2-5300 Product Description Every day, you rely on your computer to make your life easier. A Crucial DRAM upgrade can help your system run faster, and it's one of the easiest, most affordable ways to improve system performance. Reap the benefits doing everything from everyday system tasks to mission-critical applications. For over 12 years, Crucial has been recognized as a leader in DRAM upgrades. Our products help people achieve greater system performance through improved productivity, reliability, and speed. As part of one of the world’s largest DRAM manufacturers—Micron Technology—our long tenure of engineering and manufacturing expertise allow us to build high-quality, system-specific memory solutions for customers. We back our products by guaranteeing system compatibility, limited lifetime warranties, and outstanding service and support. At Crucial, we're the Memory Experts.