Enterasys STK-RPS-150PS Redundant Power Supply – Obsolete STK Series Spare Part

Technical Dossier

Product Details And Specifications

Enterasys STK-RPS-150PS Redundant Power Supply – Obsolete STK Series Spare Part

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters beyond those listed above are not independently verified by DriveKNMS. Specifications are sourced from original Enterasys product documentation. Do not substitute unverified third-party parameter data for safety-critical installations.

Solving the Discontinued Hardware Crisis

The Enterasys STK platform was engineered for enterprise and campus network environments where switch stacking reduced management overhead and provided deterministic failover. Facilities that deployed these stacks in the 2005–2012 window built their network topology around the STK interconnect architecture. That topology does not translate cleanly to modern alternatives without a full re-cabling and re-commissioning project.

The STK-RPS-150PS is not a peripheral accessory — it is the component that keeps the primary power path protected. Without a functioning RPS module, the switch stack operates on a single power feed. In industrial, healthcare, or data center environments where uptime SLAs are contractual obligations, that exposure is unacceptable.

Factory and facilities managers facing pressure to retire legacy Enterasys infrastructure should weigh the actual cost of that decision against the cost of maintaining it. A verified replacement RPS module sourced from DriveKNMS extends the operational life of the existing stack by years, at a fraction of the cost of a forklift upgrade. The engineering hours alone required to migrate switch configurations, update spanning tree topology, and re-certify the network segment in a regulated environment frequently dwarf the cost of the spare part by an order of magnitude.

How to extend your Enterasys STK stack life by 5–10 years through targeted spare parts management:

Condition & Reliability Assurance

DriveKNMS applies a five-step quality process to all obsolete power supply units before dispatch review:

• Step 1 – Visual and mechanical inspection: Full external inspection for physical damage, pin corrosion, connector wear, and housing integrity. Units with compromised connectors are rejected at this stage.
• Step 2 – Electrolytic capacitor assessment: Aging electrolytic capacitors are the primary failure mechanism in power supplies of this vintage. Each unit is assessed for capacitor condition. Units showing visible bulging, leakage, or ESR anomalies are not shipped.
• Step 3 – Firmware and label verification: Where applicable, firmware version and hardware revision labels are cross-referenced against Enterasys documentation to confirm the unit matches the listed part number.
• Step 4 – Functional power-on test: Units are powered on and output rails are verified under load conditions prior to packaging.
• Step 5 – Packaging and ESD protection: Units are packaged in anti-static materials with physical protection appropriate for international freight.

Key Features for System Maintenance

How do I know the unit is genuine and not a counterfeit?
All units sourced by DriveKNMS are physically inspected and, where possible, cross-referenced against original Enterasys documentation and hardware revision markings. We do not source from unverified secondary markets. Provenance documentation is provided where available.

Should I buy more than one unit?
For any facility running a production network on Enterasys STK hardware, holding at least one cold spare RPS module is a defensible risk management decision. This inventory is finite and will not be replenished by the manufacturer. Units purchased today are available; units needed under emergency conditions in 24 months may not be.

Can you source other Enterasys STK components?
Yes. DriveKNMS maintains inventory across multiple Enterasys product lines including stacking modules, line cards, and chassis components. Contact us with your full bill of materials for a consolidated quote.