Best prices on Sharp microwave convection countertop in Microwave Ovens. Check out BizRate for great deals on Microwave Ovens from Sharp. Use BizRate's latest online shopping features to compare prices for Sharp microwave convection countertop. Read product specifications, calculate tax and shipping charges, sort your results, and buy Appliances with confidence. Easily narrow your search and find the product that's perfect for you: Sharp R-820JS 0.9 CuFt Countertop Microwave Oven - Stainless Steel - Sharp R820BW Grill 2 Convection Countertop Microwave in White.