IBM BladeCenter HS23 Express

Business use IBM BladeCenter® HS23 gives you the networking capacity needed to manage your data center.
Processor (Max) Intel Xeon processor E5-2600 v2 product family, with up to 12 cores, processing up to 24 simultaneous threads
Memory (Min/Max) 512 GB, 16 DIMM sockets. VLP Registered ECC DDR3
Internal storage (Max) 2.0 TB

IBM BladeCenter HS23E Express

Business use The IBM® BladeCenter® HS23E provides you the value and versatility you need to manage your data center
Processor (Max) Intel Xeon processor E5-2400 product family, with up to 8 cores, processing up to 16 simultaneous threads
Memory (Min/Max) Capacity: 12 DIMM sockets at 192 GB
Speed: VLP Registered ECC DDR3, at 1333 or 1600 MHz, memory mirroring and sparing supported
Internal storage (Max) 2 TB (assumes 1 TB drives)

IBM BladeCenter S Chassis

Business use: All-in-one chassis with integrated, high-performance SAN ideal for small offices and remote branch environments.