Used HP J9728A 2920-48G Switch: Check Before Buying

Evaluate the HP J9728A listing against your network requirements and an itemized equipment inventory. Treat the “0PSU” wording as a reason to ask exactly what is included—not as proof of the delivered power configuration.

Confirm the model and included hardware

HPE identifies J9728A as the Aruba 2920 48G Switch in its 2920 series datasheet. Use that model reference to check the nameplate; it does not establish the accessories or condition of an offered used unit.

Request front, rear, nameplate, and module-bay photos. Ask the seller to list the power supply part numbers and quantities, power cords, uplink and stacking modules, optics, rack ears, and any other included accessories. Have your administrator compare the list with the exact model documentation.

Match it to your network before buying

Write down required copper and optical connections, uplink speeds, VLAN and management requirements, and any PoE or stacking needs. Ask your administrator to confirm each requirement against the offered hardware and applicable software documentation.

Request the running firmware version and a review of the upgrade path and current support position. Do not approve the purchase on the assumption that a particular version is the latest or that a different power supply is interchangeable.

Specify a port-by-port acceptance test

• Boot and access: Request a witnessed startup and authorized administrative handover. Agree how previous configuration and data will be cleared.
• Ports: Have every required port tested with the intended media and an agreed traffic test; request per-port results and error counters.
• Installed options: Include the quoted uplink or stacking components in the demonstration where applicable.
• Power and cooling: Require a functional check of the included supplies and fans under agreed conditions, with any reported alarms explained.
• Condition and remedies: Reconcile serial numbers and accessories, record damage, and agree the remedy for missing items or failed tests.

Avoid arbitrary allowances for failed ports or universal age-based rejection rules. Set acceptance criteria for the service you intend to deploy.

Compare alternatives without assuming compatibility

Review the HP 2530-24G page and Aruba 2930F page as separate equipment inquiries, not as compatible replacements or donor units. Use the vendor qualification checklist to review inspection evidence and return terms.

Request a complete quote

Request a switch quote with the model, required connections, desired accessories, acceptance requirements, and delivery location. Ask for the total including any separately quoted power supplies, modules, optics, and shipping.