Cisco DPS-1100AB -4 C Cisco power supply / PSU

Brand: Cisco | Category: UPS & Power Protection

SKU: CSC-DPS-1100AB-4C | Part #: DPS-1100AB -4 C | MPN: DPS-1100AB -4 C

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Cisco's DPS-1100AB-4C is a modular, hot-swappable AC power supply designed for deployment within Cisco chassis-based platforms across data centres, AI labs, and enterprise computing environments. This is the PSU that infrastructure teams select when they need redundancy without the complexity of external UPS systems — and when a single power failure cannot cascade into platform downtime. The DPS-1100AB-4C delivers 1100W of sustained output and operates with integrated fan cooling to manage thermal load in dense rack environments. Because this supply is rated for hot-swap operation, technicians can replace a failed unit without powering down the host chassis, a capability that separates it from passive alternatives and makes it the default choice for mission-critical deployments where availability is non-negotiable.

The 1100W capacity positions this Cisco power supply in the mid-to-upper range of the product line, sufficient for dual-socket server platforms, mid-range switches, and routing appliances that draw sustained power loads of 800–1000W during normal operation. Network engineers and systems administrators familiar with Cisco hardware recognize the DPS-1100AB-4C as the workhorse PSU across UCS C-Series servers and certain high-density switching platforms where N+1 redundancy is either mandated by SLA or strongly recommended by infrastructure policy. The modular form factor means multiple units can be installed in a single chassis, with the Cisco platform automatically managing load-sharing and failover. This design eliminates the vendor lock-in often associated with integrated power subsystems, as you can stock spares without committing to a full chassis replacement.

Redundancy support is fundamental to this supply's value proposition. In environments where a single power failure translates to service degradation, the DPS-1100AB-4C operates alongside one or more identical units in N+1 configuration, meaning the platform continues running at full capacity even if one PSU fails. Cisco's internal power management firmware handles the transition seamlessly — no manual intervention, no brief outage. For data-centre operators running service-level agreements with defined uptime targets, this capability alone justifies the capital expenditure. The supply integrates an internal fan that adjusts cooling effort based on actual load and inlet temperature, so it does not consume power wastefully during light-load periods common in overnight or weekend operations. This measured approach to cooling also reduces acoustic output, a practical benefit in co-located environments where noise constraints are enforced.

Genuine Cisco OEM manufacture ensures compatibility with Cisco's TAC support matrix — a critical consideration for enterprises that rely on vendor support for root-cause analysis and replacement hardware during incidents. The DPS-1100AB-4C carries the Cisco part number DPS-1100AB-4C and is backed by Cisco manufacturer support, meaning replacement units and technical assistance flow through established Cisco channels rather than third-party aftermarket suppliers. Storage architects and AI infrastructure teams deploying custom-built systems on Cisco hardware often specify genuine Cisco power supplies explicitly because the cost differential is negligible compared to the risk of support denial if non-OEM components cause a platform failure. Compatibility is host-platform specific; verification against the Cisco compatibility matrix is required to confirm that your target chassis supports this particular PSU model and that the electrical and mechanical interfaces match your deployment.

Omnixon Global maintains stock of genuine Cisco power supplies and modular PSU components across our UAE distribution centres, with access to Cisco's regional supply chain for rapid deployment across GCC, India, Southeast Asia, and Europe. If your data-centre, enterprise IT environment, or AI infrastructure project requires the DPS-1100AB-4C or related Cisco power protection components, we invite you to submit an RFQ through our technical sales team. Our inventory is verified against Cisco's current specifications, and we can coordinate delivery and installation support with your infrastructure partners.

Power Supply Specifications and Deployment Profile

• Output Rating: 1100W sustained capacity with integrated thermal management
• Form Factor: Modular, hot-swappable design compatible with Cisco chassis platforms
• Redundancy: Supports N+1 configuration for uninterrupted operation during PSU failure
• Cooling System: Integrated fan with load-adaptive speed control
• OEM Status: Genuine Cisco manufacture with TAC support eligibility on compatible host platforms
• Hot-Swap Capability: Yes — replacement without chassis power-down
• Compatibility Requirement: Verification against Cisco platform compatibility matrix required before purchase