Used - Good: NETGEAR WNDA4100-100NAS USB 2.0 Ultimate Performance N900 Dual-Band Wireless Adapter - Newegg.com
ABLEGRID AC / DC Adapter For NETGEAR N900 WNDR4500V1 WNDR4500 V1 WNDR4500V2 WNDR4500 V2 Wireless Dualband Dual Band Gigabit Router Power Supply Cord - Walmart.com
Amazon.com: UpBright 12V AC/DC Adapter Replacement for Netgear WNDR4500 WNDR 4500 R4500 v1 v2 WNDR4720 WNDR4500v1 WNDR4500v2 WNDR4500-100NAR WNDR4000-100NAR N900 Wireless Dual Band Gigabit Router Power Supply : Electronics