A 48-port Gigabit PoE switch with four 1/10GbE SFP+ uplink ports and a 370W PoE budget.
The HPE Networking Instant On Switch 48p Gigabit CL4 PoE 4p SFP+ 370W 1940 provides 48 RJ-45 autosensing 10/100/1000BASE-T ports with IEEE 802.3af/at Class 4 PoE and four 1/10GbE SFP+ ports. It includes a USB-C console port, 176 Gbps switching capacity, support for jumbo frames up to 9216 bytes, a 16,000-entry MAC address table, 1 GB SDRAM and 512 MB flash. Dimensions are 14.44 x 17.48 x 1.73 in (36.70 x 44.40 x 4.40 cm), and weight is 10.69 lb (4.85 kg).
How this product lines up against others in Medium Business.
| Installation method | Rack 19" | Rack 19", Desktop, Wall | Rack 19", Desktop, Wall |
| Link technology | Ethernet | Ethernet | Ethernet |
| Port speed | 10G | 10G | 10G |
| Rack Units Height | 1 U | 1 U | 1 U |
| Product line | Instant On | — | — |
| Lifecycle status | Active | — | — |
| Operating temperature | — | -5 to 50 °C | -5 to 50 °C |
| Specification group | active | active | — |
| Downlink Media Type | Ethernet | Ethernet | Ethernet |
| Downlink Ports | 48 ports | 24 ports | 48 ports |
| Downlink Speed | 1 Gbps | 1 Gbps | 1 Gbps |
| Uplink Media Type | Fiber | Fiber | Fiber |
| Uplink Speed | 10 Gbps | 10 Gbps | 10 Gbps |
| AC Input Voltage | — | 90 to 290 V | 90 to 290 V |
| HVDC Input Voltage | — | 190 to 290 V | 190 to 290 V |
| Input Frequency | — | 45 to 65 Hz | 45 to 65 Hz |
| PoE | Yes | Yes | Yes |
| PoE Budget | 370 W | 400 W | 380 W |
| PoE Output Type | PoE 802.3af, PoE+ 802.3at | PoE+ 802.3at | PoE+ 802.3at |
| Input Type | AC mains | AC mains, DC | AC mains, DC |
| Network Ports | Copper and Ethernet · 1G · Ethernet · 48 ports, Fiber Optic Transceiver · 10G · Fiber · 4 ports | Copper and Ethernet · 1G · Ethernet · 24 ports, Fiber Optic Transceiver · 10G · Fiber · 4 ports | Copper and Ethernet · 1G · Ethernet · 48 ports, Fiber Optic Transceiver · 10G · Fiber · 4 ports |
| Device Role | Switch | Switch | Switch |
| Width | 444 mm | — | — |
| Height | 44 mm | — | — |
| Depth | 367 mm | — | — |
| Weight | 4.85 kg | — | — |
| Switching capacity | 176 Gbps | — | — |
| MAC address table size | 16000 count | — | — |
| Processor model | ARM Cortex-A9 | — | — |
| CPU maximum clock | 1.25 GHz | — | — |
| Memory capacity | 1 GB | — | — |
| Onboard storage capacity | 0.51 GB | — | — |
| Maximum frame size | 9216 bytes | — | — |
| Input current, maximum | 4 A | — | — |
| Packet buffer | 4 MB | — | — |
| Memory type | SDRAM | — | — |
| Onboard storage type | Flash | — | — |
| PoE ports | 48 ports | — | — |
| Switching features | Link aggregation (LACP, 802.3ad), VLANs (802.1Q) | — | — |
| Link aggregation groups | 16 count | — | — |
| Ports per aggregation group | 8 ports | — | — |
| Switching layer | Layer 2+ (static routing) | — | — |
| Maximum VLANs | 256 count | — | — |
| Number of power inputs | 1 count | — | — |
| Maximum ARP entries | 509 count | — | — |
| Routing protocols | Static routing | — | — |
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