HP J4899-61401 | 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 12 technical specifications of the HP ProCurve Switch 2650:

1. Switching capacity: 17.6 Gbps
2. Forwarding rate: 13.1 Mpps
3. MAC address table size: 8,000 entries
4. VLAN support: Yes
5. Quality of Service (QoS) support: Yes
6. Spanning Tree Protocol (STP) support: Yes
7. Link aggregation (LAG) support: Yes
8. Jumbo frame support: Yes
9. Management interface: Web, CLI, SNMP
10. Power supply: Internal, universal, 100-240VAC, 50/60Hz
11. Dimensions (WxDxH): 17.4 in x 15.3 in x 1.7 in
12. Weight: 10.6 lbs

Helpful notes:
1. The ProCurve Switch 2650 supports up to 64 VLANs, allowing for flexible network segmentation.
2. The switch can be stacked with up to 16 other ProCurve switches for increased scalability.
3. The two 10/100/1000Base-T/SFP combo ports provide flexibility for connecting to different types of devices.