The HP 726636R-B21 is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: HP Part Number: 726636R-B21 Details: HP 726636R-B21 Ml350 Gen9 Xeon Processor E5-2690V3 2.60Ghz 30M 12 Cores 135W