Includes two TPL-407E adapters; Two adapters are needed to start a network NDAA COMPLIANT: With our NDAA compliant Powerline Ethernet Adapters, you can plan and install networking solutions that Government customers demand today (U.S. and Canada Only) MANUFACTURER PROTECTION: We stand by the quality of our products.The TPL-407E2K Powerline 500 AV Adapter Kit with Built-In Outlet is backed and supported with 3 years of TRENDnet Manufacturer Protection. RELIABLE TECH SUPPORT: Our team of advisors, support and tech experts are English speaking, and available for all your needs during normal business hours. We take pride in being there for our customers. PLUG IN INSTALL: Simply plug in TRENDnet adapters! The encrypted Powerline signal auto-connects over an existing electrical system. BUILT-IN OUTLET: With so many devices needing power, you don't lose an outlet when plugged in. Plug the adapter into an outlet, then plug a power strip into the adapter. NETWORK STABILITY: Ultra-stable Powerline networking is preferred by internet service providers. CONNECTIVITY TECHNOLOGY: Ethernet; Noise Filter: Advanced electrical noise filter boosts performance EASY INSTALLATION: Simply plug in the adapters CROSS COMPATIBLE: Backward compatible with all Powerline 600, 500, and 200 adapters