Rosewill 10" SATA 6GB/s III Flat Cable for $1 + free shipping
Newegg offers the Rosewill 10" Serial ATA 6GB/s III Flat Cable in Red, model no. RCA-RU-10-SA3-90-RD, for 99 cents with free shipping. That's tied with our December mention of a similar a similar cable as the lowest total price we've seen. (It's a current low by $3.) It features two 7-pin straight connectors and data transfer rate of up to 6Gbps.