Quantity   Component name
1 × ACER Laptop ES1-512-C12D $175 +/-
1 × Deal Extreme 216793 POE RJ45 Network Connector Female to RJ45 Male $6 http://www.dx.com/p/rj45-network-connector-female-to-rj45-male-plug-dc-5-5mm-female-male-adapter-cable-black-2-pcs-216793#.Vb_opfNVhBc
1 × CommFront USB-485-1 Serial Adapter for Win8 $38