Cisco N20-C6508 UCS 5108 Blade Server Chassis


Product Line:
Blade Enclosure
Custom Bundle:
Form Factor:
Rack Mountable
EIA Units:
6 U
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Used Cisco N20-C6508 UCS 5108 Blade Server Chassis

The Cisco UCS 5100 Series Blade Server Chassis is a scalable and flexible blade server chassis for today's and tomorrow's data center that helps reduce total cost of ownership. The N20-C6508 version of the Cisco UCS 5108 can be configured for AC power environments.  The chassis is six rack units (6 RU) high and can mount in an industry-standard 19-inch rack with square holes (such as the Cisco R Series Racks) or in round hole racks when an adapter is used. The chassis can house up to eight half-width Cisco UCS B-Series Blade Servers and can accommodate both half- and full-width blade form factors.

Up to four hot-swappable AC, DC, or HVDC power supplies are accessible from the front of the chassis. These power supplies can be configured to support nonredundant, N+1 redundant, and grid-redundant configurations. The rear of the chassis contains eight hot-swappable fans, four power connectors (one per power supply), and two I/O bays for I/O modules. A passive backplane provides support for up to 80 Gbps of I/O bandwidth to each half-width blade and 160 Gbps of I/O bandwidth to each full width-blade.

Enclosure Includes: 

  • Manufacturer: Cisco
  • Type: Blade Enclosure
  • Model:  UCS 5108
  • Chassis: N20-C6508 UCS 5108 Blade Server Chassis-AC Version
  • Device Bays: 8
  • Fabric Extender: None Included 
  • Power Supplies: None Included 
  • Fans: (4) Included 
  • Rails: None Included 

CTO means Configure-to-Order these enclosures come with no blades, power supplies, or rails. 

IGS can help you configure this for a complete configured solution!

Cisco UCS 5108 Blade Server Enclosure Specification


Six rack unit (6RU) chassis

Blade server slots

8 half-width slots, 4 full-width slots, or combination of half- and full-width slots.

IO slots (for FIs or FEXs)


Fabric Extenders

Compatible with 2408, 2208XP, 2204XP, and 2304XP Fabric Extenders

Fabric Interconnects

Compatible with 6324 Fabric Interconnects


Four PSUs supporting N, N+1 and N+N redundancy.


8 hot-swappable fan modules supporting N+1 redundancy


Managed from the Cisco UCS 6200 or 6300 Series Fabric Interconnects by Cisco UCS Manager (redundant management when configured with two fabric extenders or two 6324 Fabric Interconnects)


1.2 TB of aggregate throughput; supports 10G-KR or 40G-KR connections for 8 half-width blades.


There are no user connectors such as RJ-45 ports on the chassis itself.


The integral chassis midplane supports the following:

  • 320 G total bandwidth to each of two I/O Modules
  • Auto-discover of all components
  • Redundant data and management paths
  • 10 G Base-KR

The midplane is an entirely passive device.

Blade Servers

The Cisco UCS B-Series Blade Servers are based on industry-standard server technologies and provide the following:

  • Up to two or four Intel multi-core processors, depending on the server
  • Front-accessible, hot-swappable hard drives or solid-state disk (SSD) drives
  • Depending on the server, support is available for up to three adapter card connections for up to 160 Gbps of redundant I/O throughput
  • Industry-standard double-data-rate 4 (DDR4) memory
  • Remote management through an integrated service processor that also executes policy established in Cisco UCS Manager software
  • Local keyboard, video, and mouse (KVM) and serial console access through a front console port on each server
  • Out-of-band access by remote KVM, Secure Shell (SSH), and virtual media (vMedia) as well as Intelligent Platform Management Interface (IPMI)

The Cisco UCS B-Series offers multiple blade server models. The supported processor family is indicated by M4 or M5 designations on the model.

  • Cisco UCS B200 M5 Blade Server
  • Cisco UCS B200 M4 Blade Server
  • Cisco UCS B480 M5 Blade Server
  • Cisco UCS B460 M4 Blade Server
  • Cisco UCS B260 M4 Scalable Blade Server
  • Cisco UCS B420 M4 Blade Server

Management by Cisco UCS Manager

  • Reduces TCO by removing management modules from the chassis, making the chassis stateless, and UCS systems management inherently scalable
  • Provides a single, highly available management domain for all system chassis, reducing administrative tasks through automated service profile configuration

Unified fabric

Decreases TCO by reducing the number of network interface cards (NICs), host bus adapters (HBAs), switches, and cables needed

Support for up to two Cisco UCS 2200 or 2300 Series Fabric Extenders

  • Eliminates switches from the chassis along with complex configuration and management of those switches, allowing a system to scale without adding complexity and cost
  • Allows use of two fabric extenders for redundancy or aggregation of bandwidth
  • Enables bandwidth scaling based on application needs; blades can be configured for 1.25 Gbps to 40 Gbps

Support for up to two Cisco UCS 6324 Fabric Interconnects that connect directly to an external switch

  • Allows use of up to two internal 6324 fabric interconnects for redundancy or aggregation of bandwidth
  • The 6324 Fabric Interconnect combines the Fabric Extender and Fabric Interconnect functions into one plug-in module, and allows direct connection to an external switch.


Requires no configuration; like all components in the Cisco Unified Computing System, chassis are automatically recognized and configured by Cisco UCS Manager and its service profiles and service profile groups

High-performance mid-plane

  • Provides investment protection
  • Supports up to 2x 40 Gbit Ethernet links to each half-width blade slot or up to 4x 40 Gbit links to each full-width slot
  • Provides 8 blades with 1.2 terabits (Tb) of available Ethernet throughput for future I/O requirements. (note that the UCS 6324 FI supports only 512 Gbps)
  • Provides reconfigurable chassis to accommodate a variety of form factors and functions

Redundant hot-swappable power supplies and fans

  • Provides high availability in multiple configurations
  • Provides uninterrupted service during maintenance

 Hot-swappable blade servers and fabric extenders

Provides uninterrupted service during maintenance and server deployment.

Comprehensive monitoring

  • Provides extensive environmental monitoring on each chassis
  • Allows use of user thresholds to optimize environmental management of the chassis

Thermal efficiencies

The Chassis Management Controller (CMC) monitors all the temperature sensors and regulates fan speeds to maintain the airflow at the minimum needed to cool the system. The open backplane and deep plenum allow air to be directed across the blades to ensure cooling is directed where it is needed most.

Tool-free installation

  • Requires no specialized tools for chassis installation
  • Provides mounting rails for easy installation and servicing

Mixed blade configurations

The UCS 5108 Server Chassis can accommodate a maximum of 8 half-width sever blades or 4 full-width server blades or any combinations of the two sizes that will fit in the chassis.