TP-LinkTL-WDR3500 N600 Dual-Band Router for $39.99 shipped after a $10 rebate.  Here is a screenshot for your reference.  It features simultaneous 2.4GHz 300Mbps and 5GHz 300Mbps connections for 600Mbps of total available bandwidth, 1 USB port, external detachable antennas, and more.  Most places have it for about $62.