TRENDnet RB-TPL-401E2K 500Mbps Powerline AV Adapter Kit (Refurbished) Features&#58; Includes two TPL-401E adapters High speed building-wide networking over an existing electrical system Connect one 500Mbps Powerline AV Adapter to the Internet and then plug in up to 15 additional 500Mbps One-touch Sync button networks adapters quickly