IBM Power 9 Expansion drawer

9009 EMX0: PCIe Gen3 I/O Expansion Drawer

EMX0 is IBM's PCIe Gen3 I/O Expansion Drawer. Listed for 9009-22A, 9009-41A, 9009-42A and more.

A 4U rack drawer that adds up to 12 more PCIe card slots when the server runs out of room.

EMX0 at a glance

DetailValue
Feature codeEMX0
NamePCIe Gen3 I/O Expansion Drawer
Part typeExpansion drawer
Height4U (4 EIA), 19 in rack
Slotsup to 12 PCIe Gen3 with two 6-slot fan-out modules
Powertwo redundant hot-plug supplies
ConnectionPCIe3 optical cable adapter in the server with CXP active optical or copper cables
Listed for these Power 9 machine types9009-22A, 9009-41A, 9009-42A, 9009-22G, 9009-41G, 9009-42G
Runs with IBM iNot stated by the source

IBM: does not apply to the 4-core Power S914 or to the S914 tower configuration.

Before you order EMX0

An expansion drawer adds slots or drive bays when the server itself is full. It is often the difference between upgrading a Power 9 and replacing it.

Not sure which Power 9 you have? The Power 9 machine types page shows how to check. Collecting several parts for one quote? Use the Power 9 quote checklist. Or look up another feature code.

Source: REDP-5497 sections 1.6.1 and 2.7.1; REDP-5595. Always confirm against your server's own configuration before you order.

Your 4 next moves with a Power 9

Every Power 9 owner lands on one of these. You can mix them, too. Keeping or upgrading buys time while you plan a replacement.

  1. Keep it running

    Your Power 9 does not stop working when IBM support ends. Third-party maintenance can cover parts and repairs, often for less than IBM charged.

    Best when the server is stable and you need one or two more years.

    Compare third-party maintenance
  2. You are reading about this move

    Upgrade the server you have

    More memory, bigger drives, or a faster network or Fibre Channel card can buy real time without a new server. Every part has an IBM feature code, so the upgrade starts there.

    Best when you are running out of room, not out of support.

    Browse Power 9 upgrades
  3. Buy a used or refurbished Power 9

    A matching used Power 9 makes a cheap spare, test box, or short bridge. Match the machine type first, because an A model and a G model carry different support dates.

    Best for a spare, a test system, or a stopgap of two years or less.

    Compare new, used, and refurbished
  4. Replace it with Power 10 or Power 11

    If you need IBM i 7.6, or want five or more years of IBM support, price a replacement. IBM i 7.6 does not run on any Power 9.

    Best when the server has to last past 2027 or the software needs a newer release.

    Compare Power 9 vs Power 11