Selling RX 580 8gb - 30 m/hash

as following:
1pc
ROG-STRIX-RX580-O8G-GAMING
https://rog.asus.com/graphics-cards/graphics-cards/rog-strix/rog-strix-rx580-o8g-gaming-model/
Price/pc = $360 + shipping

28 pcs
GIGABYTE Radeon™ RX 580 GAMING 8G (rev. 2.0)
https://www.gigabyte.com/Graphics-Card/GV-RX580GAMING-8GD-rev-20
Price/pc = $220 + shipping

5 pcs
PowerColor Red Dragon Radeon™ RX 580 8GB GDDR5
https://www.powercolor.com/product?id=1496737629
Price/pc = $150 + shipping