kingston valueram 512mb 100mhz non-ecc cl2 dimm technology sdram ecc / registered non-ecc unbuffered capacity 512 mb bus clock 100 mhz cas latency cl2 form factor dimm 168-pin kingston, the world's largest independent memory manufacturer, has over 2,000 memory products. in today's performance-driven environment, memory upgrades provide an easy, economical alternative to increase system performance. every memory product kingston offers is designed to help you get maximum performance at the best price to you.