The following is a Linksys E5400 which has been flashed with OpenWRT version 25.12.5 (if you don't know what OpenWRT is, I would recommend doing some research on it before buying this).
The listing includes the router, power adapter, an ethernet cable, and the original box as shown.
Note: the WAN port appears to be limited to 100Mbps, so be aware that this could be a bottleneck if your internet speeds are higher than this and you want to use this as your primary router.
Specs:CPU: MediaTek MT7628AN (single core, 580MHz)RAM: 64MBStorage: 16MBWireless MIMO: 5GHz 802.11ac2x2, 2.4GHz 802.11n2x2LAN Ports: 4x 100Mbps portsUSB ports: none