Cisco UCS X9508 Modular System

With a midplane-free design, I/O connectivity for the X9508 chassis is accomplished with front-loading,
vertically oriented compute nodes intersecting with horizontally oriented I/O connectivity modules in the
rear of the chassis. A Unified Ethernet fabric is supplied with the Cisco UCS 9108 Intelligent Fabric Modules.
Cisco UCS X-Fabric Technology interconnects enable connectivity between the compute and resource nodes
using PCIe Gen4 and will supply other industry-standard protocols as standards emerge. Interconnections
can be easily updated with new modules.

The 7 rack-unit (7RU) Cisco UCS X9508 chassis has 8 flexible slots that can house a combination of compute
nodes and a pool of current and future I/O resources that may include GPU accelerators, disk storage, and
nonvolatile memory.

At the top rear of the chassis are two intelligent fabric modules that connect the chassis to upstream Cisco
UCS 6400 Series and 6536 Fabric Interconnects. At the bottom are slots housing I/O modules that can
flexibly connect the compute modules with I/O devices and ready for future modules. This Cisco UCS
X-Fabric technology uses ‘X’ to denote a variable that can evolve with new technology developments.
Six 2800 W power supply units (PSUs) provide 54 VDC power to the chassis with N, N+1, N+2, and N+N
redundancy. The higher voltage allows efficient power delivery with less copper and reduced power loss.
Efficient, 100 mm, dual counter-rotating fans deliver industry-leading airflow and power efficiency.