Aruba JL665A — CX 6300M 24×1G PoE+ + 4×SFP56 (25/50G) stackable access switch

What it is: An Aruba CX 6300M Series switch aimed at enterprise access and aggregation. JL665A gives you 24 × 1GbE RJ-45 ports with PoE+ for powered edge devices, plus 4 × SFP56 uplinks that run 1/10/25/50G for fast core links or VSF stacking. Runs AOS-CX, so you get the same modern operations as the rest of the CX lineup.

Why buyers pick JL665A (plain English)

• PoE for real access closets: powers APs, phones, cameras, and IoT on a 24-port footprint.

• Fast uplinks without a bigger chassis: 25/50G SFP56 keeps your access layer from choking your core.

• Stacks simply: VSF stacking makes multiple switches act like one — cleaner upgrades, easier growth.

• Modern CX ops: AOS-CX includes analytics (NAE), automation APIs, and Aruba Central support.

60-second spec box (JL665A)

Access / downlink ports

• 24 × 10/100/1000Base-T RJ-45

• PoE+ (Class 4) up to 30W per port

• Total PoE budget depends on PSU choice (plan endpoint draw + headroom)

Uplinks / stacking

• 4 × SFP56 supporting 1G / 10G / 25G / 50G

• Commonly used for uplinks or VSF stack links

Stacking / HA

• VSF (Virtual Switching Framework), typically up to 10 members

• High-bandwidth stacking over SFP56

Performance (series typical)

• Enterprise-class line-rate switching sized for full 1G PoE access with 25/50G uplinks

OS & management

• AOS-CX (Network Analytics Engine, REST APIs, automation-first)

• Managed via CLI/Web UI, Aruba Central, telemetry/SNMP

• OOB management port + USB console

Resiliency

• Dual hot-swap PSU bays (supports 1+1 redundancy)

• Hot-swap fan trays

Form factor

• 1U rack-mount, fixed-depth chassis

Where it fits (and when to choose something else)

• Perfect for:

  • PoE access closets needing 24 powered ports

  • Sites migrating to 25/50G uplinks from the edge

  • Collapsed core / mid-size sites using VSF stacks

• Choose JL664A if you want the same layout without PoE.

• Choose 48-port PoE+ models if you need more powered endpoints per closet.

• Choose Smart Rate mGig + 60W PoE models (JL660A/JL662A) for Wi-Fi-6/6E/7 heavy floors.

TL;DR

JL665A is the CX 6300M “24-port PoE+ closet switch with fast uplinks”: 24×1G PoE+, 4×SFP56 up to 50G, VSF stacking, and AOS-CX analytics/automation — a tidy, modern access pick when you need power + uplink muscle in a smaller footprint.