OXA USA via Amazon offers the Tec.Bean 6-Outlet Power Strip Surge Protector / USB Charging Station for $22.99. Coupon code "MFFE8MJJ" cuts that to $19.54. Plus, Prime members bag free shipping. That's the lowest price we could find by $6. It features a 9.8-foot cord and four 2.1-amp USB ports.
Also available is the 10-Outlet model for $28.99 before coupon, $24.64 after. Plus, Prime members bag free shipping. That's $25 off list and the lowest price we could find.