产品名称：BLACK BOX LB8406A-US           
型号：LB8406A-US                                
品牌：BLACK BOX

描述：For industrial environments.
Feature two fiber ports and four copper ports to expand your network.
Tough steel case.
RJ-45 ports support autonegotiation, you can easily attach any 10- 
or 100-Mbps device.
Aailable with many types of AC and DC power supplies.
Support both half- and full-duplex operation.
规格：
Plug-and-play installation makes network integration easy—even for !
10-/100-Mbps autonegotiating and autosensing copper ports plus optional
100-Mbps fiber uplink port make them a solid choice for migrating 
to Fast Ethernet.
Auto-X on all copper ports eliminates the need for crossover
cables.