Home › Servers › Cisco

Cisco UCS C225 M8

CurrentServers1U rack
Cisco UCS C225 M81U rack10 × SFF 2.5" bays

The Cisco UCS C225 M8 is a next-generation 1U 2-socket rack server powered by 4th and 5th Gen AMD EPYC 9004 and 9005 series processors. Built with PCIe Gen 5 interconnects, DDR5 memory, and high-density NVMe drive arrays, it delivers extreme core density and power efficiency for cloud computing and enterprise virtualization.

Buy Cisco UCS C225 M8Sell yours

Specifications

BrandCisco
FamilyUCS C-Series
Form factor1U rack
ReleasedOct 2024
ProcessorUp to 2x AMD EPYC 9004 or 9005 series processors up to 128 cores each (up to 400W TDP)
Memory24x DDR5 DIMM slots supporting up to 6TB DDR5-6000
Drive baysUp to 10x 2.5-inch NVMe/SAS SSDs plus dual internal M.2 boot drives
Expansion slotsUp to 3x PCIe Gen 5 expansion slots plus dedicated OCP 3.0 slot
NetworkOCP 3.0 slot and PCIe Cisco VIC adapters supporting up to 200GbE
Power supplyDual redundant hot-swap Titanium power supplies up to 2000W
ManagementCisco IMC and Cisco Intersight

Generations

Compatible parts

Hard drives

Boot devices

Memory

SSDs

TPM modules

HBAs

GPUs

Network adapters

Power supplies

RAID controllers

Rail kits

Works together

How the Cisco UCS C225 M8 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

Plan and size it

Check compatibility with Cisco

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Cisco has tested with the Cisco UCS C225 M8.

Equivalent models from other brands

FAQ

What maximum core count does the C225 M8 provide in 1U?

With dual 128-core AMD EPYC 9005 processors, it provides up to 256 physical compute cores in 1U.

What memory generation is used in the C225 M8?

The C225 M8 utilizes high-speed DDR5 registered memory.

Buying or selling UCS C225 M8?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

Buy UCS C225 M8Sell yours

Sources