https://www.bestbuy.com/site/logitech-harmony-smart-control-black/8574049.p?skuId=8574049
Also at Amazon:
https://www.amazon.com/Logitech-Harmony-Smart-Control-Black/dp/B00BQ5RYI4/ref=sr_1_2?ie=UTF8&qid=1505231083&sr=8-2&keywords=harmony+hub
https://www.amazon.com/Logitech-Harmony-Elite-Remote-Control/dp/B014PDFP9S/ref=sr_1_5?ie=UTF8&qid=1505230944&sr=8-5&keywords=harmony+hub
https://www.amazon.com/Harmony-Ultimate-Remote-Control-Black/dp/B00BQ5RY1G/ref=sr_1_14?ie=UTF8&qid=1505230944&sr=8-14&keywords=harmony+hub