HP J4905-69101 | ProCurve 3400CL Series 3400CL-24G 20 x RJ-45 Ports 10/100/1000Base-T + 4 x Dual Personality RJ-45/SFP (mini-GBIC) Ports Layer 2 Managed Rack-mountable Gigabit Ethernet Network Switch

Here are the technical specifications for the HP ProCurve 3400CL-24G:

1. Number of Ports: 24 x RJ-45 10/100/1000Base-T, 4 x SFP (mini-GBIC)
2. Switching Capacity: 48 Gbps
3. Forwarding Rate: 35.7 Mpps
4. MAC Address Table Size: 8K entries
5. VLAN Support: Yes
6. Max Units In A Stack: 16
7. Authentication Method: RADIUS, TACACS+
8. Management Protocol: SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, HTTP, HTTPS, SSH-2
9. Power Over Ethernet (PoE): No
10. Dimensions: 17.4 x 13.2 x 1.7 inches
11. Weight: 11.02 pounds
12. Power Consumption: 100 Watts (maximum)

Helpful Notes:
1. The HP ProCurve 3400CL-24G is a stackable switch, allowing for easy expansion and management of multiple switches.
2. The switch supports various management protocols, including SNMP and Telnet, making it easy to integrate into existing networks.
3. The absence of PoE may limit the switch's ability to power certain devices, such as IP phones or wireless access points.