Newegg has 512GB Samsung 850 Pro 2.5" SATA III Solid State Drive (MZ-7KE512BW) for $229.99 - $30 w/ promo code 0113DAYSLE29 = $199.99. Shipping is free.

Note, if the above promo code expires, you may also use promo code MBL160113A for the same discount, however this code may only be applied via the Newegg mobile site or app. Thanks TDMVP73 [discuss]