HP J9028-61001 | ProCurve 1800 series 1800-24G 22 x RJ-45 Ports 10/100/1000Base-T + 2 x Dual Personality RJ-45/SFP (mini-GBIC) Ports Layer 2 Managed Rack-mountable Gigabit Ethernet Network Switch

Here are 12 technical specifications for the HP ProCurve 1800-24G Ethernet Switch:

1. Switching capacity: 48 Gbps
2. Forwarding rate: 35.7 Mpps
3. MAC address table size: 8,000 entries
4. VLAN support: 64 VLANs supported and active
5. Jumbo frame support: up to 9,216 bytes
6. Quality of Service (QoS) support: Yes
7. Management interface: Web browser, SNMP, and CLI
8. Power over Ethernet (PoE) support: No
9. Dimensions: 17.4 x 10.6 x 1.7 inches
10. Weight: 6.5 pounds
11. Operating temperature: 32°F to 104°F (0°C to 40°C)
12. Power supply: Internal power supply with AC input voltage of 100-240 VAC

Helpful notes:
1. The HP ProCurve 1800-24G Ethernet Switch is a cost-effective solution for small to medium-sized businesses.
2. The switch's web-based management interface makes it easy to configure and monitor network settings.
3. The two SFP (Mini-GBIC) ports provide flexibility for connecting to fiber or other networking devices.