Welcome to Riskfreememory.co.uk Shop online for Memory in the UK at the best prices. Order with Riskfreememory.co.uk with a secure online form for next day delivery. Riskfreememory.co.uk is a division of RiskFree (UK) Ltd. 202170-B21 1GB 200MHz DDR PC1600 Registered ECC SDRAM DIMMs (4 x 256MB Interleaved) DL580 G2 (RF743413-MF-202170-B21-Compaq-Memory-Memory) Manufacturer Code: 202170-B21 Our Code: RF743413 Price and availability Order this product Search for more items Please click Price and availability for up to date pricing. To browse through over 20,000 products available please visit www.riskfree.co.uk/shop.