PoE++ 65W 2.5G Adapter HP Enterprise B5NH6AA with 3.66m CAT6A Cable and Power Cord, Black, 65×140×38.5 mm

HP Enterprise PoE++ 65W 2.5G adapter B5NH6AA is a compact network power and connectivity solution that supplies up to 65 watts of Power over Ethernet++ while delivering multi-gigabit data over a single RJ‑45 connection. The unit includes a 3.66 m CAT6A cable and an AC power cord, and its small footprint (65 × 140 × 38.5 mm) enables flexible placement near desk phones, conferencing endpoints and other compact networked devices. This adapter is intended to consolidate power and data delivery, reducing the need for separate power supplies at endpoint locations and supporting higher-power IP devices where PoE++ is required.

Advantages

This HP Enterprise adapter combines power and 2.5G data on one cable, simplifying installations and reducing cable clutter. Its 65W PoE++ capability supports higher-consumption endpoints such as advanced desk phones and compact conferencing devices. Native support for 2.5 Gigabit Ethernet provides increased bandwidth over standard Gigabit links while remaining backward compatible with existing network equipment and cabling standards. The included 3.66 m CAT6A cable is specified for twisted-pair installations at multi‑gig speeds and helps ensure correct cable rating out of the box.

Suitable for

• Powering and connecting VoIP desk phones that require PoE++ power
• Supplying power to small conferencing devices and media endpoints
• Providing multi‑gigabit connectivity for networked peripherals
• Deployments where a single‑cable solution reduces installation complexity

Key specifications

• Power delivery: up to 65 W via PoE++
• Network speed: 2.5 Gigabit Ethernet
• Cable included: 3.66 m CAT6A twisted‑pair cable (EU configuration)
• Interface: RJ‑45 Ethernet connector carrying data and power
• Device dimensions: 65 × 140 × 38.5 mm
• Color: black

How to use

Connect the supplied CAT6A cable between the adapter’s RJ‑45 port and the endpoint device to be powered and networked. Attach the AC power cord to an appropriate mains outlet and ensure the power sourcing equipment is configured to allow PoE++ output. Confirm the endpoint supports PoE/PoE+/PoE++ and can accept up to 65W; verify the link negotiates at 2.5G where supported. Route and secure the cable to avoid sharp bends and sources of electromagnetic interference before powering the system.

Usage recommendations

Use the adapter with endpoints certified for PoE++ and with cabling rated for multi‑gigabit operation. Verify that switches and power sourcing equipment have adequate power budget for connected devices. Avoid running the data cable alongside high‑voltage power lines and ensure RJ‑45 connectors are fully seated to maintain stable power and data delivery.