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If anyone is looking for a small travel router to run openwrt this thing is great! : r/openwrt
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Amazon.com: GL.iNet GL-MT300N-V2(Mango) Portable Mini Travel Wireless Pocket VPN Router - WiFi Router/Access Point/Extender/WDS | OpenWrt | 2 x Ethernet Ports | OpenVPN/Wireguard VPN | USB 2.0 Port | 128MB RAM :
Finally, a geek travel router I love! - Justin's IT Blog
Amazon.com: Nanopi R5S Travel Mini VPN Router OpenWRT Single Board Computer with Three Gbps Ethernet Ports LPDDR4X 2GB RAM Based on Rockchip RK3568 Soc for IOT NAS Smart Home Gateway Support Android
Amazon.com: GL.iNet GL-MT1300 (Beryl) VPN Wireless Little Travel Router – Connect to Hotel WiFi & Captive Portal, USB 3.0, 3 Gigabit Ports, Range Extender, Assess Point, Pocket-Sized, MicroSD Slot, Easy to Setup :