IBM Expansion Units for Bitcoin, crypto, or trade


North of Seattle (physical location) will take Bitcoin or Ethereum or cryptocurrency if reasonable offer. Best to see them, touch them, feel them. Sold as is. Willing to trade. Freight not included, packing not included.

condition: good
make / manufacturer: IBM
model name / number: 1818 System Storage

Multiple Units:IBM 1818-D1A EXP5000 System Storage 46C8815 Expansion Unit
Multiple Units — IBM 1812-81A EXP810 System Storage Expansion Unit

IBM DS4000 EXP810 Hard Drive Enclosure


IBM expands its DS4000 series midrange disk storage offerings of high performance, high-availability, business-critical storage solutions, with the introduction of the 4 gigabit per second (Gbps) capable IBM System Storage DS4000 EXP810 Hard Drive Enclosure and 2 Gbps Fibre Channel Enhanced Disk Drive Modules (E-DDM) options. A 4 Gbps capable controller system is required to achieve 4 Gbps drive channel operation. The 4 Gbps capable IBM System Hard Drive Enclosure offers a new 16-bay disk enclosure for attachment to selected DS4000 Midrange Disk Systems, with up to 4.8 terabytes (TB) physical capacity per expansion unit on initial introduction. The EXP810 Hard Drive Enclosure is designed to accommodate the new 2 Gbps Fibre Channel E-DDMs, as well as future 4 Gbps Fibre Channel E-DDMs and Serial ATA (SATA) E-DDMs.


Manufacturer IBM Corporation
Manufacturer Part Number 181281H

Brand Name IBM
Product Model EXP810
Product Name DS4000 EXP810 Hard Drive Enclosure
Product Type Network Drive Enclosure


Form Factor Rack-mountable
Height 5.2″
Width 19″
Depth 22″
Weight (Approximate) 69

19 Units in total, need to take inventory (between 2 models of units)
*Chords not available. Sold as is.
Reasonable offer takes them.
Other: Research (not sure if correct):
The IBM EXP5000 is a high-capacity Storage Expansion Unit. The EXP5000 is packaged in a 3U rack-mountable enclosure that houses 16 drive bays. The EXP5000 can house up to 16 Fibre Channel or SATA disk drives or a combination of both types of drives. The EXP5000 at-taches to the IBM DS5100 and DS5300 controllers to build physical storage configurations of up to 896 TB using 2 TB SATA disk drives or up to 268.8 TB using 600 GB FC disk drives. Up to 28 EXP5000 expansion units, that houses up to 448 disk drives, can be attached to the DS5100 and DS5300 storage controllers. The EXP5000 attaches to DS5000 controllers and other disk expansion units via four 4 Gbps drive ports. The drive ports must be populated with shortwave 4 Gbps SFP transceivers to enable the ports. The EXP5000 ships with two ports already populated. If the configuration requires all drive ports to be populated, SW 4 Gbps SFP transceiver feature (#2412) containing two transceivers, must be ordered to populate the other two ports

IBM 1812-81A DS4000 EXP810 Expansion Unit

Part Number: 1812-81A

EXP810 Key Features

Built-in redundant power supplies and cooling components to help improve reliability and availability
16 Drive Bays (No Drives Included)

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