Aruba JL663A — CX 6300M 48×1G copper + 4×SFP56 (25/50G) stackable access/aggregation switch

What it is: An Aruba CX 6300M Series switch built for enterprise access, aggregation, or collapsible core. JL663A gives you 48 × 1GbE RJ-45 ports for classic copper access, plus 4 × SFP56 high-speed ports that run 1/10/25/50G for uplinks or VSF stacking. Runs AOS-CX, so it’s modern, automated, and consistent with the rest of the CX family.

Why buyers pick JL663A (plain English)

• A “clean 1G edge” with fast uplinks: keep copper to endpoints, but uplink at 25/50G to stop the closet from being the bottleneck.

• Great for aggregation too: 48×1G is ideal for inter-IDF aggregation or mixed campus edge.

• Stacks simply: VSF stacking means multiple switches behave like one — easy growth, easy upgrades.

• Modern CX ops: AOS-CX brings Network Analytics Engine, REST APIs, and Aruba Central support.

60-second spec box (JL663A)

Access / downlink ports

• 48 × 10/100/1000Base-T RJ-45

Uplinks / stacking

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

• 50G is commonly used with 50G DACs (uplink or VSF stacking)

Stacking / HA

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

• High-bandwidth front-plane stacking over SFP56

Performance (model typical)

• Switching capacity: 496 Gbps

• Throughput: 369 Mpps

• Latency (typical): ~2.3 µs @ 1G, ~1.5 µs @ 10G

OS & management

• AOS-CX (NAE analytics, automation-first design)

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

• USB-C console, OOB management port, USB-A host

Power / cooling

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

• Hot-swap fan trays

• Typical power: ~56W idle, ~75W at full traffic

Form factor

• 1U rack-mount, fixed depth

Where it fits (and when to choose something else)

• Perfect for:

  • Standard 1G access closets that still want 25/50G uplinks

  • Copper-heavy floors (desktops/printers/phones) with modern campus backbones

  • Aggregation of multiple 1G edge blocks into faster core links

• Choose JL661A if you want the same port layout with Class 4 PoE+.

• Choose JL660A/JL662A if you need Smart Rate mGig + 60W PoE for AP-heavy floors.

• Choose JL658A/JL659A if you want all-fiber 10G SFP+ access.

TL;DR

JL663A is the CX 6300M “classic copper + fast uplink” box: 48×1G RJ-45, 4×SFP56 up to 50G, VSF stacking, and AOS-CX analytics/automation — a strong, no-drama choice for modern 1G access or aggregation.