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. MEM3660-64D= Cisco 3640 Router 64MB DRAM SIMM (RF481298-MF-MEM3660-64D=-CiscoSystems-Memory-Memory) Manufacturer Code: MEM3660-64D- Our Code: RF481298 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.