The HP (JE061A) was formerly sold as the 3Com (3CR17771-91)
E4500-24G-PoE Gigabit Ethernet Switch – PoE Ports
4500G-24 PWR Stackable Ethernet Switch – 4 x SFP (mini-GBIC), 2 x XFP – 24 x 10/100/1000Base-T
The JE061A and 3CR17771-91 4500G-24 PWR are the same product
See Hp cross refernece look up:
3COM corporation was acquired by HP on November 11, 20
Flexible Layer 2/3/4 Gigabit Ethernet switches with two expansion slots for up to four optional 10-Gigabit ports.
Non-PoE and PoE models.
Lite Layer 3 routing-RIPv1/v2 and static routes. IPv4/IPv6 operation.
All models have Gigabit SFP mini-GBIC ports for fiber flexibility.
4500G-24 PWR Stackable Ethernet Switch delivers flexible quad-speed performance 10/100/1000 and 10-Gigabit and advanced voice-optimized features such as Power over Ethernet (PoE) and auto-voice VLAN and QoS.
The 4500G-24 PWR Stackable Ethernet Switch ideal for medium businesses and small enterprises seeking to build a secure converged network.
Wires peed Layer 2 Gigabit switching with dynamic Layer 3 Gigabit routing make the 4500G-24 PWR Stackable Ethernet Switch ideal for wiring closet, workgroup and small core connectivity requirements.
In addition, four of the ports are dual-personality, operating either as 10/100/1000 or SFP-based fiber providing greater flexibility.
This switch also accommodate up to four extra optional 10-Gigabit high-speed links, enabling connectivity to a core network or to high-performance servers.
Total Number of Network Ports 24
Number of PoE (RJ-45) Ports 24
Stack Port Yes
Port/Expansion Slot Details 24 x Gigabit Ethernet Network
Port/Expansion Slot Details 4 x Gigabit Ethernet Expansion Slot
Port/Expansion Slot Details 2 x 10 Gigabit Ethernet Expansion Slot
Media & Performance
Ethernet Technology Gigabit Ethernet
Network Technology 10/100/1000Base-T
Number of Total Expansion Slots 6
Expansion Slot Type SFP
Expansion Slot Type XFP
Shared SFP Slot Yes
Number of SFP Slots 4
Number of XFP Slots 2
Network & Communication
Layer Supported 3
Management & Protocols
IEEE 802.1p QoS
IEEE 802.1Q VLANs
SNMP v1, v2, v3
PoE (RJ-45) Port Yes
Input Voltage 110 V AC
Input Voltage 220 V AC
Power Source Power Supply
Compatible Rack Unit 1U
Weight (Approximate) 13.20 lb
Green Compliant Yes
Green Compliance Certificate/Authority RoHS