- 40 × 1G PoE+ (802.3at) RJ45 ports delivering power and data to network devices (30 W per port).
- 8 × 10G SFP+ uplink ports for high‑speed fibre or backbone connectivity.
- 960 W total PoE power budget to support numerous PoE devices simultaneously.
- 240 Gbps non‑blocking switching fabric for robust throughput.
- Managed Layer 2/Layer 3 networking with VLANs, QoS, ACLs, DHCP, and routing.
- Enhanced NETGEAR IGMP Plus™ for optimized multicast for AV‑over‑IP.
- Multiple management interfaces (Web GUI, CLI/SSH, console, SNMP).
- Rack‑mountable 1U design with selectable fan modes for quiet operation.
Specifications
| Model | M4250‑40G8XF‑PoE+ (GSM4248PX) |
| Total Ports | 48 (40×1G PoE+, 8×10G SFP+) |
| PoE+ Ports | 40 × 10/100/1000 RJ45 (802.3at) |
| PoE Budget | 960 W total (30 W per port) |
| Uplink Ports | 8 × 1/10 G SFP+ |
| Primary Port Speed | 1 Gigabit |
| Switching Fabric | 240 Gbps non‑blocking |
| Forwarding Rate | 178.56 Mpps |
| PoE per Port | Up to 30 W (PoE+ IEEE 802.3at) |
| Multicast Support | Enhanced NETGEAR IGMP Plus™ |
| Jumbo Frame Support | Yes, up to 12 KB |
| Management Interfaces | Web GUI, CLI (SSH/Telnet), SNMP, console (USB‑C/RJ45), management LAN port |
| MAC Address Table | 16 K entries |
| Dimensions (WxDxH) | 440 × 400 × 43.2 mm |
| Weight | ~6.31 kg |
| Fan / Acoustics | Fanless or ~59 dB @ 25 °C selectable |
| Power Consumption | ~1197 W with PoE / ~89.2 W without PoE |



