This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee. Extend the range of your Wi Fi with the RE220, compatible with any router/ Gateway/ access point ( 2. 4GHz 300Mbps/ 5GHz 433Mbps )Smart indicator lights help provide optimal placement; Should be installed between the router and the desired areaEasy to install experience stable connections for any type of applications such as retail POS, internet, gaming, mobile phone, Alexa, echo and moreAn upgrade to its predecessor the RE200; The RE220 provides cloud functionality and remote management, Adaptive path selection, chooses the best path between the repeater and router)Gigabit Ethernet port connects wired devices to your network for high speed connectionTP Link is the world's #1 provider of consumer Wi Fi for 7 consecutive years according to IDC Q2 2018 reportIf you experience any trouble during or after set up, Please contact us; TP Link offers a 2 year and free 24/7 technical support