Costco has the Siemens Versicharge (VC30GRYU) for for $389.99 ($459.99 - $70) +tax. S&H included, only for Costco Members. This is a great price for a high quality 30 A (7.2 kW) EVSE. Charges an EV up to 5x faster than on a Level 1 120 V charger. You will need an existing NEMA 6-50 receptacle on a 240 V circuit and a dedicated double pole breaker rated 40 A or 50 A.
Deal is valid through 9/30/18.
Note: State law may require sales tax to be charged on the pre-discounted price if the product is subject to sales tax.