5Gb Switch & Route Processor: 5Gb SRP with 2GB ECC memory. Includes a 1GB flash card. Replacement product for "ERX-5ECC-SRP" & "ERX-5G1GECC-SRP".This SRP has the following minimum software requirements: 4.1.3 and later, 5.0.4 and later, 5.1.2 and later, and 5.2.0 and later (e.g., 5.3, 6.0, etc.).