For its newsletter subscribers only, newegg offers the Rosewill 4-Port USB Wall Charger for Mobile Devices, RUC-6181, for $16.99. Coupon code "EMCXRWP99" cuts it to $8.99. With free shipping, that's tied with our mention from three weeks ago as the lowest total price we could find by $6. It works with most electronics that use a USB charging cable and includes adapters that allow it to be used in North America, Europe, Australia, and over 150 other countries. Deal ends May 22.