Samsung RAM Memory Module 256MB PC800 800MHz RDRAM RIMM MR18R082GBN1-CK8. Material: Plastic. Material: Metal. Material: Electronics. Exact item size plus or minus 1/4 inch - 5.25in length x 1.4in width x 0.15in height. Color: Green/Silver. Country of Manufacture: Korea, Republic of. Feature: Part Number: FRU20L0287. Feature: non-ECC 45ns. Feature: 184-Pin RAMBUS