XS4BRD-484-1350 Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.35GHz, 32GB Mod.

XS4BRD-484-1500 Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.5GHz, 32GB Mod.

XS4BRD-484-1500Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.5GHz, 32GB Mod.

XS4BRD-488-1350 Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.35GHz, 64GB Mod.

XS4BRD-488-1500 Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.5GHz, 64GB Mod.

XS4BRD-488-1500Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.5GHz, 64GB Mod.

XUS4BD-400-1800Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.8GHz, 0GB Mod.

XUS4BD-400-1950-Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.95GHz, 0GB Mod.

XUS4BD-444-1950-Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.95GHz, 16GB Mod.

XUS4BD-448-1950-Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.95GHz, 32GB Mod.

XUS4BD-482-1800Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.8GHz, 16GB Mod.

XUS4BD-484-1800Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.8GHz, 32GB Mod.

XUS4BD-488-1800Z Sun Fire E4900, Sun Fire E6900, Sun Fire E15K, and Sun Fire E25K CPU Memory Board with 4 x 1.8GHz, 64GB Mod.