Dualcomm ETAP-2003 is a Network TAP for use with a 10/100/1000Base-T Ethernet link. ETAP-2003 is solidly constructed with a metal case and is probably the smallest in size of all the GbE Network Taps available on the market. 

ETAP-2003 can be powered from a computer's USB port with a built-in inrush current limiting circuit to prevent the computer from possible damages or disturbances by an instantaneous current surge.  

ETAP-2003 is compatible with "Power over Ethernet" (PoE) so that deployment of an ETAP-2003 Network Tap would not block the end-to-end flow of PoE inline power, which is a very useful feature for monitoring or capturing data traffic of a PoE Ethernet link.

As a network monitoring and troubleshooting instrument, ETAP-2003 is highly reliable with consistent performance. It has been tested with the maximum in-line cable length of 200 meters at a full 1Gbps data throughput with no single packet loss. 

All these make ETAP-2003 an ideal portable network traffic sniffing device for monitoring and troubleshooting data traffic in a 10/100/1000Base-T Ethernet network.

Model ETAP-2003 blocks ingress traffic of the monitor port to prevent a monitoring apparatus such as a computer from injecting packets into the network. 

Model ETAP-2003R doesn't block ingress traffic of the monitor port. ETAP-2003R can also be used as a 3-port Ethernet switch. 

HIGHLIGHTS:

• Network TAP for use with a 10/100/1000Base-T link
• Reliable and high performance. Tested with maximum in-line cable length (200m) at full 1Gbps data throughput with no single packet loss
• Capable of being powered from a computer's USB port with a built-in inrush current limiting circuit to prevent the computer from possible damages or disturbances by the instantaneous current surge
• Compatible with PoE with PoE power pass-through between two inline ports
• Solidly constructed with metal case.  Probably the smallest portable GbE Network Tap available on the market
• Replacement for Dualcomm DCGS-2005 and DCGS-2005L network TAPs