Check the listing for details. MEM-RSP720-4G 4GB Memory Upgrade 2x 2GB Cisco 7600 Route Switch Processor RSP720. Condition: New. Listed at 54.95 USD. MEM-RSP720-4G 4GB (2 x 2GB) Memory for Cisco 7600 Series Route Switch Processor 720 Third Party Compatible Memory Compatible with RSP720-3CXL-GE, RSP720-10GE Warranty: Lifetime Replacement Warranty. Premium Quality: Brand name parts only-no unknown and overclocked parts. All memory modules made from major brand memory chips such as Micron, Samsung, Elpida, Hynix, Promos, Infineon/Qimonda. We do not use generic or OEM chips that are unreliable. Compatibility: Industry standard memory. Guaranteed 100% compatible. Please contact us with any compatibility questions. Experience: Memory expert since 1990. Exchanges and Returns: No hassle exchanges and refunds. Shipping: Quick shipping. Shipped in well padded envelope or box with anti-static packing.