Newegg offers the Corsair Vengeance LPX 16GB PC4-17000 DDR4-2133 288-Pin SDRAM Desktop Memory Kit with two 8GB DIMMs, model no. CMK16GX4M2A2133C13, for $69.99 with free shipping. (For Prime members only, Amazon charges the same.) That's the lowest total price we could find by $18. It features 13-15-15-28 timings.