HP J4908A#ABA | ProCurve 4100GL 20-Ports 1000Base-T 2 x SFP (Mini-GBIC) GigaBit Ethernet Switch Expansion Module

1. Brand: HP
2. Model: J4908A#ABA
3. Product Type: Expansion Module
4. Number of Ports: 20
5. Data Transfer Rate: 1 Gbps
6. Connectivity Technology: Wired
7. Cabling Type: Ethernet 1000Base-T, Ethernet 100Base-TX, Ethernet 10Base-T
8. Switching Protocol: Ethernet
9. MAC Address Table Size: 8K entries
10. Features: Full-duplex capability, layer 3 switching, layer 2 switching, auto-sensing per device, auto-negotiation, VLAN support, manageable, stackable, Quality of Service (QoS), Jumbo Frames support
11. Compliant Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.3ae, IEEE 802.1s
12. Expansion Slots: 2 x SFP (mini-GBIC)

Helpful notes:
1. The HP ProCurve 4100GL 20-Ports switch is a reliable and efficient solution for high-performance networking needs.
2. The switch is stackable, which means that it can be easily integrated into an existing network infrastructure.
3. The Jumbo Frames support feature allows for the transmission of larger data packets, which can improve network performance.