What is the performance of this switch?

Throughput reaches 107.2 Mpps with 144 Gbps switching capacity. Latency is <3.2 μs at 1000 Mb and <2.6 μs at 10 Gbps, supporting 10/100/1000BASE-T PoE+ and SFP speeds. This ensures high-performance L2/L3 switching for demanding campus networks.

Does it support VLANs and how many?

Yes, it supports IEEE 802.1Q with up to 4,094 simultaneous VLAN IDs and GARP VLAN Registration Protocol for dynamic management. This enables extensive network segmentation, security, and efficient traffic handling in enterprise environments.

Is this switch stackable?

Yes, it features stacking ports and 2 interface slots compatible with IRF for 50 ms switchover resiliency. Rack-mountable form factor supports scalable deployments, making it suitable for carrier-class reliability in stacked configurations.

What management protocols are supported?

Includes RFC 1157 SNMPv1/v2c, RFC 1901 SNMPv2, and RFC 1305 NTPv3, plus a console port. These enable robust monitoring, configuration, and time synchronization for enterprise IT management.

What are the environmental specs?

Operates in 5% to 95% noncondensing humidity and complies with ISO 7779 for acoustic noise. External power supply supports PoE+ on all 48 ports, suitable for data centers and offices with standard rack setups.

JG239A - HP 5500-48G-PoE+ SI Switch with 2 Interface Slots 48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3at); 4 dual-personality SFP ports

Name: JG239A - HP 5500-48G-PoE+ SI Switch with 2 Interface Slots 48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3at); 4 dual-personality SFP ports
Brand: HP
SKU: JG239A

JG239A - HP 5500-48G-PoE+ SI Switch with 2 Interface Slots 48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3at); 4 dual-personality SFP ports | US IT Hardware

Product overview

The HP 5500-48G-PoE+ SI Switch (JG239A) is a managed Layer 2 and Layer 3 Gigabit Ethernet switch from the HP 5500 SI Switch Series, designed for enterprise environments. It features 48 RJ-45 autosensing 10/100/1000 PoE+ ports compliant with IEEE 802.3at and 4 dual-personality SFP ports for flexible connectivity. With 2 interface slots, it supports stacking and expansion. Performance includes up to 107.2 Mpps throughput and 144 Gbps switching capacity, with low latency of <3.2 μs at 1000 Mb and <2.6 μs at 10 Gbps. VLAN support handles 4,094 IDs via IEEE 802.1Q and GARP. Management protocols include SNMPv1/v2c, SNMPv2, and NTPv3. Rack-mountable and stackable, it operates in 5% to 95% noncondensing humidity and meets ISO 7779 acoustic standards. Ideal for secure, high-performance campus networks with PoE for voice and convergence.

48x Gigabit PoE+ ports, 4 SFP, 2 slots for expansion
144 Gbps capacity, 107.2 Mpps throughput
Low latency: <3.2 μs @1G, <2.6 μs @10G
4,094 VLANs, IEEE 802.1Q, GARP support
Rack-mountable, stackable with IRF resiliency
SNMPv1/2c, NTPv3 management protocols

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	JG239A
Brand	HP
Condition	New
Model	5500-48G-PoE+ SI Switch with 2 Interface Slots
PoE Budget	PoE+ (IEEE 802.3at) on 48 ports
Product Line	HP 5500 SI Switch Series
Product Type	Managed Layer 2 and Layer 3 Gigabit Ethernet Switch
Management Protocols	RFC 1157 SNMPv1/v2c; RFC 1901 SNMPv2; RFC 1305 NTPv3
Standards Compliance	IEEE 802.3 Type 10BASE-T; IEEE 802.3u 100BASE-TX; IEEE 802.3ab 1000BASE-T; IEEE 802.3at PoE+
Console Management Port	Yes

Compatible systems

No specific system or OS compatibility lists found in sources

Best for

Campus Networks
Powers 48 PoE+ devices like IP phones and access points with IEEE 802.3at compliance, supporting auto-voice VLAN and QoS for convergence.
Enterprise Edge
Delivers 107.2 Mpps throughput and 144 Gbps capacity with low latency <3.2 μs, enabling secure L2/L3 switching and 4,094 VLANs.
Stackable Deployments
Stackable with 2 interface slots and IRF for resilient 50 ms switchover, ideal for scalable rack-mountable enterprise setups.
SMB Core
Provides Gigabit Ethernet with SFP uplinks and management via SNMP/NTP, supporting high-density PoE+ in small-to-medium business cores.

Latency	1000 Mb: <3.2 μs; 10 Gbps: <2.6 μs
Throughput	Up to 107.2 Mpps; Switching Capacity: 144 Gbps
VLAN Support	IEEE 802.1Q with 4,094 simultaneous VLAN IDs; GARP VLAN Registration Protocol

Acoustic Noise	ISO 7779 compliant
Operating Humidity	5% to 95%, noncondensing

Stacking Port	Yes
Ethernet Ports	48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3at); 4 dual-personality SFP ports
Ethernet Speed	10/100/1000BASE-T PoE+; 1000BASE-SX/LX via SFP

HP 5500-48G-PoE+ SI Switch with 2 Interface Slots 48 RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3at); 4 dual-personality SFP ports

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