HP J4899C#ABA | ProCurve 2600 Series 2650 48-Ports RJ-45 10/100Base-TX + 2-Ports RJ-45 GE + 2-Ports SFP(mini-GBIC) Layer 3 Managed 1U Rack-mountable Stackable Fast Ethernet Network Switch

Here are the technical specifications for the HP ProCurve Switch 2650:

1. Ports: 48 x 10/100Base-TX + 2 x 10/100/1000Base-T/SFP (mini-GBIC)
2. Switching capacity: 17.6 Gbps
3. Forwarding rate: 13.1 Mpps
4. MAC address table size: 8,000 entries
5. VLAN support: Yes
6. Jumbo frames support: Yes
7. Quality of Service (QoS): Yes
8. Management interface: Web-based, CLI, SNMP
9. Power supply: Internal, AC 120/230 V (50/60 Hz)
10. Rack-mountable: Yes, 1U
11. Stackable: Yes, up to 4 units
12. Dimensions (WxDxH): 44.2 cm x 32.8 cm x 4.4 cm

Helpful notes:
1. The HP ProCurve Switch 2650 is a reliable and cost-effective solution for small to medium-sized businesses.
2. The switch supports advanced features like VLAN and QoS, making it ideal for network segmentation and traffic prioritization.
3. The switch is easy to manage and can be stacked with up to 4 units, providing scalability as your business grows.