The HP (JE059A) E4500-48G-PoE Switch was formerly sold as the 3Com (3CR17762-91)
The JE059A and 3CR17762-91 E4500-48G-PoE are the same product
See Hp cross refernece look up:
3COM corporation was acquired by HP on November 11, 20
E4500G-48Port Stackable Ethernet Switch – 4 x SFP (mini-GBIC), 2 x XFP – 48 x 10/100/1000Base-T
The E4500G-48Port Stackable Ethernet Switch delivers flexible quad-speed performance 10/100/1000 and 10-Gigabit.
The 4500G-48Port 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-48Port 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 48
Stack Port Yes
Number of Network (RJ-45) Ports 48
Port/Expansion Slot Details 48 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
Input Voltage 110 V AC
Input Voltage 220 V AC
Power Source Power Supply
Compatible Rack Unit 1U
Weight (Approximate) 9.90 lb
Green Compliant Yes
Green Compliance Certificate/Authority RoHS
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