This is a 4G LTE-compatible Wi-Fi home router with a maximum speed of 300 Mbps, also allowing band selection. It also has a wired LAN port. - Brand: I-O DATA - Model Name: WN-CS300FR - Communication Method: 4G LTE / 3G - Frequency Band: 2.4 GHz - Maximum Communication Speed: 300 Mbps - Band selection available (use/do not use) Supported Bands: 4G: B1/3/8/18/19/26 3G: B1/6/8/19 Thank you for viewing. Purchased in February 2021 and used with Rakuten Mobile until November, fixed to BAND 3 only. It was used near a north-facing window during that time, so there is almost no sun damage. The supported SIM card size is microSIM. Since the current mainstream is the even smaller nanoSIM, an adapter will be included as a bonus. The SIM slot of this device is a tray type (not an insertion type), so there is no worry about the card getting stuck. Upon listing, I performed initialization and confirmed that communication is possible with povo2.0 from both the wired LAN port and WiFi. Complete accessories: AC adapter, 2 instruction manuals, wireless LAN setting information sheet Manufacturer's official website: https://www.iodata.jp/product/network/wnlan/wn-cs300fr/index.htm