Toggle menu
770-772-0200

Shop By Category

Shop By Brand

  • IBM iSeries Servers
  • IBM pSeries Servers
  • Disk Drives
  • External Tape Backup
  • Internal Tape Backup
  • Memory
  • Adapter Cards
  • IBM RAID Cards for Power Systems
  • Ethernet Lan/Wan
  • CD DVD Drives
  • Expansions
  • IBM Storage FlashSystems and SAN Solutions
  • HMC Consoles
  • Display Units
  • Printers
  • IBM Parts

    • Shop By Brand

  • View all Brands

    • For IBM AS400 Older Models

    IBM Expansions for Older AS/400 Models - PCI-X Towers & Storage Units

    Discover reliable expansion solutions for older IBM AS/400 and early iSeries systems. These PCI-X towers, storage expansion units, and I/O enclosures add disk bays, PCI slots, and I/O capacity to support legacy workloads in OS/400 environments. Designed for rack or tower setups, they connect via SPD, RIO/HSL, or direct attachment for enhanced scalability on classic AS/400 hardware.

    Why Choose Expansions for Older AS/400 Models?

    Older AS/400 systems (e.g., Models 500/510/530, 270, AS/400e 7xx, migration from 640/S30/730) benefit from modular expansions to increase storage and PCI/PCI-X adapter capacity without replacing core hardware. PCI-X towers (0595/5095) provide disk bays and slots, while storage units (505x series) add high-capacity disk options. These expansions support Ultra SCSI/Ultra2 SCSI interfaces, hot-swap where applicable, and integrate via SPD or RIO/HSL for redundancy and growth. Ideal for maintaining legacy OS/400 applications requiring expanded I/O and storage.

    Available IBM Expansions for Older AS/400 Models

    • IBM 0595 PCI-X Tower Unit in Rack Feature Code: 0595 Racked version of 5095 PCI-X tower. Holds 12 disk units and 7 PCI slots. Provides scalable storage and I/O expansion for older AS/400 and iSeries systems.
    • IBM 5095 PCI-X Expansion Tower Feature Code: 5095 Stand-alone PCI-X expansion tower. Holds 12 disk units and 7 PCI slots. Compatible with older AS/400 models for adding I/O and storage capacity.
    • IBM 5051 Storage Expansion Unit Feature Code: 5051 8-disk slot expansion unit for system unit. Compatible with Models 500 and 510. Adds disk capacity for legacy storage needs.
    • IBM 5052 Storage Expansion Unit Feature Code: 5052 16-disk slot expansion. Compatible with Models 500, 510, 530 or towers like #5070/#5072. Ideal for increasing storage in older iSeries/AS/400 environments.
    • IBM 5055 Storage Expansion Unit Feature Code: 5055 8-disk slot expansion for Ultra SCSI disk units. Supports legacy storage growth on compatible AS/400 models.
    • IBM 5057 Storage Expansion Unit Feature Code: 5057 16-disk slot unit, often paired with #5077 Migration Tower II. Provides substantial storage expansion for migrations from Models 640, S30, 730.
    • IBM 5058 Storage Expansion Unit Feature Code: 5058 16-disk slot expansion with battery backup unit. Enhances reliability for storage-intensive legacy workloads on Models 500, 510, 530.
    • IBM 5065 Storage/PCI Expansion Tower SPD Feature Code: 5065 Combined storage/PCI tower with 45 disk slots and 12 PCI slots. Supports Ultra2 SCSI for high-capacity legacy expansions on AS/400e 7xx models.
    • IBM 5074 PCI Expansion Tower HSL Feature Code: 5074 PCI expansion tower with 45 disk slots, 14 PCI slots, and two removable media bays. HSL-attached for high-performance I/O on compatible older models.
    • IBM 5075 PCI Expansion Tower Feature Code: 5075 PCI expansion tower with 6 disk slots and 7 PCI slots, includes 32MB PCI IOP. Compact I/O addition for Model 270 and similar legacy systems.
    • IBM 0588 PCI-X Expansion Unit in Rack Feature Code: 0588 Rack-mounted PCI-X expansion unit with 14 PCI-X slots (equivalent to #5088 in #0551 rack). Adds adapter capacity for older AS/400 systems.

    Note: These expansions primarily use PCI-X, SPD, and Ultra SCSI/Ultra2 SCSI technology. Compatibility varies by model (e.g., Models 500/510/530, 270, AS/400e 7xx). Always verify exact cable/controller requirements for your specific legacy AS/400 model.

    Compatibility & Support

    These expansions are compatible with older IBM AS/400 and early iSeries systems, including but not limited to Models 500, 510, 530, Model 270, AS/400e 7xx series, migration from Models 640, S30, 730, and compatible racks, towers, and configurations.

    Refer to individual product pages for exact connection requirements, supported adapters/drives, OS/400 support details, and installation notes. All items include a 60-day limited warranty.

    • IBM 5079 1.8M I/O Tower HSL
      Quick view

      IBM 5079 1.8M I/O Tower HSL

      IBM 5079 1.8M I/O Tower HSL 90 disk slots 22 PCI slots IBM 5079 is attached to Models 820, 830, 840, 890 for adding up to 90 disk units, up to 22 PCI IOAs and up to four removable media units. #5079 includes two bus adapters that provide HSL...

      $750.00
      Add to Cart
    • IBM 5082 1063Mbps Storage Expansion Tower
      Quick view

      IBM 5082 1063Mbps Storage Expansion Tower

      IBM 5082 1063Mbps Storage Expansion Tower 32 disk slots IBM 5082 adds up to 16 disk units and attaches to the system via a 1063Mbps optical link. A total of 32 disk units are possible with the addition of #5052 Storage Expansion Tower.

      $1,000.00
      Add to Cart
    • IBM 5083 1063Mbps Storage Expansion Tower
      Quick view

      IBM 5083 1063Mbps Storage Expansion Tower

      IBM 5083 1063Mbps Storage Expansion Tower 16 disk slots IBM 5083 adds up to 16 disk units (a total of 32 disk units are possible with the addition of #5058). #5083 includes a 1063Mbps optical bus card, various cables (including an optical cable)...

      $1,000.00
      Add to Cart
    • IBM 5088 PCI-X Expansion Unit
      Quick view

      IBM 5088 PCI-X Expansion Unit

      IBM 5088 PCI-X Expansion Unit 14 PCI slots IBM 5088 is an eight-EIA-unit-high "top hat" with is installed on top of a #5074/#5094 expansion tower. Each #5088 has 14 PCI-X slots for PCI IOPs and IOAs. Disk units and removable media are not supported...

      $450.00
      Add to Cart
    • IBM 5094 PCI-X Expansion Tower
      Quick view

      IBM 5094 PCI-X Expansion Tower

      IBM 5094 PCI-X Expansion Tower 45 disk slots 14 PCI slots IBM 5094 has 15 disk unit slots, with an additional 30 slots available with feature #5108. #5094 also has two removable media slots and 14 PCI-X card slots. A #9844 Base PCI IOP is included.

      $750.00
      Add to Cart
    • IBM 5095 PCI-X Expansion Tower
      Quick view

      IBM 5095 PCI-X Expansion Tower

      IBM 5095 PCI-X Expansion Tower Holds 12 disk 7 PCI slots IBM 5095 is a stand-alone (desk side) PCI-X Expansion Tower that provides expanded I/O capability for iSeries systems. The #5095 has seven PCI-X IOP/IOA slots and supports up to 12 disk...

      $650.00
      Add to Cart
    • IBM 5096 PCI-X Exp Tower (no disk)
      Quick view

      IBM 5096 PCI-X Exp Tower (no disk)

      IBM 5096 PCI-X Exp Tower (no disk) 14 PCI slots IBM 5096 is an I/O expansion tower that has 14 PCI slots. It does not support disk units and does not support any internal removable media devices. A #5088 can not be mounted on a #5096.

      $1,500.00
      Add to Cart
    • IBM 5101 30-Disk Expansion Feature
      Quick view

      IBM 5101 30-Disk Expansion Feature

      IBM 5101 30-Disk Expansion Feature 15 disk slots IBM 5101 includes two 15 disk unit enclosures, a 700 watt (or 765 watt) power supply, backplanes and cables. A PCI Disk Unit Controller is required to support the 15 disk units in each of the two...

      $1,000.00
      Add to Cart
    • IBM 5105 Dual Line Cord I/O Tower
      Quick view

      IBM 5105 Dual Line Cord I/O Tower

      IBM 5105 Dual Line Cord I/O Tower IBM 5105 provides dual line cord capability for a #5074 PCI Expansion Tower, and for the top unit in a #8093 optional base tower. Two #14XX line cords are required for each #5074 tower with a #5105 when a #5105 is on an...

      $1,000.00
      Add to Cart
    • IBM 5108 30-Disk Expansion Feature
      Quick view

      IBM 5108 30-Disk Expansion Feature

      IBM 5108 30-Disk Expansion Feature 30 disk slots IBM 5108 is a disk unit expansion enclosure feature for a single line cord #5094 PCI-X Expansion Tower. #5108 includes two 15-disk-unit enclosures, one 765-watt power supply, back-planes, and cables...

      $500.00
      Add to Cart
    • IBM 5294 1.8M I/O Tower
      Quick view

      IBM 5294 1.8M I/O Tower

      IBM 5294 1.8M I/O Tower 90 disk slots 28 PCI slots IBM 5294 is a I/O expansion tower that can contain up to 90 disk units, has 28 PCI slots and has four removable media bays.

      $2,000.00
      Add to Cart
    • IBM 5786 TotalStorage EXP24 Disk Dwr
      Quick view

      IBM 5786 TotalStorage EXP24 Disk Dwr

      IBM 5786 TotalStorage EXP24 Disk Dwr 24 Disk  IBM 5786 provides disk slots for up to 24 disk units in a 19-inch, 4 EIA high rack drawer. The #5786 provides redundant power, redundant cooling, and Ultra 320 SCSI interface connections for 24...

      $800.00
      Add to Cart
    Compare Selected