page_title: IBM BladeCenter
section_title: HS20
hierarchical_section_title: IBM BladeCenter / Intel based / HS20
caption_attribution_description: Photograph of an IBM HS20 blade server. Multilingual section English: An IBM HS20 series blade server. Italiano: Blade server della serie IBM HS20. Українська: Блейд-сервер IBM HS20.
context_page_description: The IBM BladeCenter was IBM's blade server architecture, until it was replaced by Flex System. The x86 division was later sold to Lenovo in 2014.
context_section_description: (2002–6) Features
  One or two Intel Xeon DP processors (single or dual-core)
  Four DIMM
  Option for one or two 2.5" drives (ATA100, SCSI U320 or Serial Attached SCSI (SAS) depending on generation)
  Two Gigabit Ethernet ports
  One expansion slot for up to two additional ports (Fibre Channel storage, additional Ethernet, Myrinet 2000 or InfiniBand)
caption: Inside of IBM HS20 blade. Two 2.5 inch disk drive bays are unoccupied.
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