Newegg via eBay has GIGABYTE Radeon RX 580 GAMING 8G (rev. 2.0) Graphics Card, PCIe 3.0, 8GB 256-Bit GDDR5, GV-RX580GAMING-8GD REV2.0 Video Card on sale for $134.99
https://www.ebay.com/itm/293462898984
Newegg via eBay has GIGABYTE Radeon RX 580 GAMING 8G (rev. 2.0) Graphics Card, PCIe 3.0, 8GB 256-Bit GDDR5, GV-RX580GAMING-8GD REV2.0 Video Card on sale for $134.99
https://www.ebay.com/itm/293462898984