Cisco WS-C3560X-48PFS-RF | Catalyst 3560-X Series C3560X-48PF 48 x RJ-45 Ports PoE+ 10/100/1000Base-T Layer 3 Managed 1U Rack-mountable Gigabit Ethernet Network Switch

Here are the technical specifications for the Cisco Catalyst 3560X-48PF-S:

1. Switch type: Managed
2. Number of ports: 48 x 10/100/1000 (PoE)
3. Power over Ethernet (PoE): Yes
4. Rack-mountable: Yes
5. Refurbished: Yes
6. Forwarding bandwidth: 160 Gbps
7. Switching bandwidth: 88 Gbps
8. MAC address table size: 12,000 entries
9. Jumbo frame support: 9216 bytes
10. VLAN support: Yes
11. Quality of Service (QoS): Yes
12. Security: IEEE 802.1X, RADIUS, TACACS+

Helpful notes:
1. The Cisco Catalyst 3560X-48PF-S is a highly reliable and scalable switch that is perfect for enterprise-level networks.
2. The PoE feature allows for easy installation of IP phones, wireless access points, and other PoE-enabled devices.
3. The refurbished model is a cost-effective option for those looking to upgrade their network infrastructure without breaking the bank.