Kit includes two adapters that use existing electrical wiring in your home to create a network connection Plug and play installation requires no software Delivers up to 200 Mbps throughput for high-bandwidth applications Homeplug AV compliant 128-bit encryption for extra security Each adapter measures 283 x 386 x 157 inches WxHxD backed by a 1-year warranty Each adapter measures 283 x 386 x 157 inches WxHxD backed by a 1-year warranty