Items detais:

The Cisco Catalyst 3750-X series switches are an enterprise-class lines of stackable and standalone switches, respectively. These switches provide high availability, scalability, security, energy efficiency, and ease of operation with innovative features such as Cisco StackPower, IEEE 802.3at Power over Ethernet Plus (PoE+) configurations, and Media Access Control Security (MACsec) features. The Cisco Catalyst 3750-X series with StackWise Plus technology provides scalability, ease of management and investment protection for the evolving business needs. The Cisco Catalyst 3750-X enhances productivity by enabling applications such as IP telephony, wireless, and video for borderless network experience.

Product Identifiers
Brand Cisco
Model WS-C3750X-48PF-S
MPN WS-C3750X-48PF-S
UPC 0882658330537, 882658330537

Key Features
Form Factor Rack-Mountable
Ports Qty 48-Ports
Data Transfer Rate 64000 Mbps
Data Link Protocol Ethernet
Compatibility PC

Features
Other Features Hot swap module replacement, layer 3 switching, layer 2 switching, dynamic IP address assignment , DHCP support, power over Ethernet (PoE), auto-negotiation, ARP support, trunking, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, Syslog support, traffic shaping, Broadcast Storm Control, High Availability, Multicast Storm Control, Unicast Storm Control, Rapid Spanning Tree Protocol (RSTP) support, DHCP snooping, Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), PoE+, Per-VLAN Spanning Tree Plus (PVST+)
Status Indicators Port status, link activity, port transmission speed, port duplex mode, power, system

Networking
Networking Type Switch
Connectivity Technology Wired
Switching Protocol Ethernet
Remote Management Protocol CLI, FTP, RMON, RMON 1, RMON 2, RMON 3, RMON 9, SNMP, SNMP 1, SNMP 2, SNMP 2c, SNMP 3, SSH, TFTP, Telnet
Power Over Ethernet (PoE) Yes
Routing Protocol EIGRP, HSRP, IGMP, RIP-1, RIP-2, RIPng, Static IP routing
Stackable Stackable

Connectors
Interfaces 1 x USB - 4 pin USB Type A, 1 x management - Ethernet 10Base-T/100Base-TX - RJ-45, 1 x management - RS-232 - RJ-45, 1 x management - console - mini-USB Type B, 2 x network stack device, 48 x network / power - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45

Power
Power Source AC 120/230 V ( 50/60 Hz )
Power Supply Power supply - redundant - plug-in module

Memory
Flash Memory 128 MB flash
RAM Memory 256 MB

Dimensions
Width 17.5 in.
Height 1.8 in.
Depth 19.5 in.
Weight 17 lbs

Miscellaneous
Enclosure Type Rack-mountable - 1U
Humidity Range Operating (Range) 5 - 95%
Min Operating Temperature 23 ˚F
Rack Mounting Kit Optional