Very nice QD's, and very free-flowing, although I have to say that they let out more than 0.5-1mL of fluid when you disconnect them. But yeah, every single one of my builds for the last year or so has used these. A little pricy, but a lot more useful than a lot of the fitting bling around these days. And yeah, you'll need one male and one female to make a connection.
__________________ i7 2600K | ASUS Maximus IV GENE-Z | GTX Titan | Corsair DDR3-2133 |