Interface
• 48 10/100/1000Base-T ports
• 4 100/1000Base-T/SFP combo ports
LEDs
• Power
• Link/Activity/Speed (per port)
Port Standards & Functions
• IEEE 802.3 10Base-T
• IEEE 802.3u 100Base-TX
• IEEE 802.3ab 1000Base-T
• IEEE 802.1p Quality of Service (QoS) (8 queues)
• IEEE 802.3x Flow Control supported for full-duplex
• Auto-negotiation
• IEEE 802.3az Energy-Efficient Ethernet (EEE)
Full/Half Duplex
• Full/half duplex for 10/100 Mbps speeds
• Full duplex for Gigabit speed
D-Link Green Features
• Power saving by link status, cable length, port shut-off, and system hibernation
Performance
Switching Capacity 
• 104 Gbps
Switching method
• Store and forward
MAC Address Table Size 
• 16K Entries
Maximum 64-byte Max.packet Forwarding Rate
• 77.4 Mbps
DRAM Size
• 128 MB DDR3
Packet Buffer
• 1.5 MB
Flash Memory
• 32 MB
Dimensions (W x D x H) 
• 440 x 210 x 44 mm
Weight
• 3.46 kg
Power Input 
• AC Input: 100 to 240 V AC, 50/60 Hz