IBM Power 10 Expansion drawer

9105 EMX0: PCIe Gen3 I/O Expansion Drawer

EMX0 is IBM's PCIe Gen3 I/O Expansion Drawer. Listed for 9105-41B, 9105-22B, 9105-22A and more.

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

EMX0 at a glance

DetailValue
Feature codeEMX0
NamePCIe Gen3 I/O Expansion Drawer
Part typeExpansion drawer
Height4U
Slotsup to 12 PCIe3 (two 6-slot fan-out modules #EMXH)
Powertwo redundant hot-plug supplies, 1030 W
Listed for these Power 10 machine types9105-41B, 9105-22B, 9105-22A, 9105-42A, 9043-MRX, 9080-HEX
Runs with IBM iYes ... REDP-5649 Table 2-20 lists AIX, IBM i, and Linux.

REDP-5675 section 3.8.2 misprints the code once as EXM0.

Withdrawn from marketing in January 2024 and replaced by the Gen4 drawer #ENZ0; still supported and can coexist with #ENZ0 on the same server. Not usable with the 4-core S1014 or with the S1012. Max drawers: 1 on a one-socket scale-out server, 2 on two-socket, 16 on a four-node E1080.

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 10 and replacing it.

Not sure which Power 10 you have? The Power 10 machine types page shows how to check. Collecting several parts for one quote? Use the Power 10 quote checklist. Or look up another feature code.

Source: REDP-5675 section 3.8.2 and Table 3-38; REDP-5649 Tables 2-20 and 2-27. Always confirm against your server's own configuration before you order.