I purchased two of these for a network I was installing in my office, but only needed one. This package is factory sealed and was never opened or installed.

Designed for business-class management, security, speed, and quality of service with 48 Gigabit Ethernet ports and 4 10G SFP+ uplinks.

• 10G SFP+ Uplink Ports (4)
• Advanced Network Security and QoS
• TAA Compliant

Here are the specs:

• Switch Type -Managed
• Switch Ports -48
• Power Consumption -43.87W
• Jumbo Frame (FE, GE) -12Kbytes
• LEDs -Power, Fault
• VLAN -Port-based and 802.1q VLANs, Management VLAN, Guest VLAN support
• Memory -512MB
• Forwarding Rate -130.95 Mpps
• Dimensions (LxWxH) -(17.32 x 10.24 x 1.73 in) - 3468 g (7.65 lb) - 440 x 260 x 44 mm
• Weight -3468 g (7.65 lb)
• Number of VLANs Supported -256 active VLANs (4,096 range)
• Operating Humidity -10 to 90% RH
• Operating Temperature -0 to 50°C (32 to 122°F)
• Ports -4 10G SFP+ - 48 Gigabit Ethernet
• Security Features -802.1x Radius authentication - DHCP snooping - DOS Attack Prevention - IP-MAC binding - Port Isolation (Protected Ports) - Port Security (256 max entries per port)
• Rate Limiting -Rate limit according to network speed, 12kbps~1000Mbps: in steps of 16kbps
• Power Input -1.5A - 100–240V - 50–60 Hz
• Spanning Tree -EEE 802.1d Spanning Tree, IEEE 802.1w Rapid Spanning Tree, IEEE 802.1s Multiple Spanning Trees (16 instances)
• Quality Of Service -8 hardware queues - Port-based, 802.1p priority-based, IPv4/v6 IP DSCP-based - Strict, Weighted Round Robin (WRR)
• Storage Temperature --20 to 70°C (-4 to 158°F)
• RMON -Embedded remote monitoring (RMON 1, 2, 3, 9) software agent support for enhanced traffic management, monitoring, and analysis
• MAC Address Table Size -32K
• Switching Capacity -176 Gbps
• HOL Blocking Prevention -Head of line (HOL) blocking prevention
• Auto Voice VLAN -Voice traffic is automatically assigned by OUI to a voice-specific VLAN and treated with appropriate levels
• Other Management -Console Port, DHCP client, system log, configuration upload and backup via HTTP or TFTP, PING, Traceroute, dual images, SNTP
• Link Aggregation -IEEE 802.3ad LACP, up to 8 groups with up to 8 ports per group
• Access Control - Ingress, MC Based ACL, IPv4 Based ACL, IPv6 Based ACL, ACL Binding, Action: permit/deny
• Storm Control -Support broadcast/unknown multicast/unknown unicast 16kbps~1000Mbps: in steps of 16kbps
• Management Interface -HTTP - HTTPS
• Routing -Static Routing, IPv4 (63 max entries), IPv6 (21 max entries)
• SNMP -Version 1 - Version 2c - Version 3
• Fans -1, 8200 rpm (at full speed)
• Storage Humidity -5 to 95% RH (non-condensing)
• IGMP Snooping -GMP (v1/v2/v3) snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors; supports 256 multicast groups
• Power Saving -EEE
• Port Mirroring -Traffic on multiple ports (up to 3 ports) can be mirrored to another port for analysis with a network analyzer
• Firmware Upgrade -Web Browser (HTTP/HTTPS)