No, Corsair does not make any power supplies. They have them manufactured by OEMs that actually do the manufacturing to Corsair's specs.
2 years ago Corsair was a brand you could recommend by name. Not anymore. Only their higher end models are still quality across the board.
The budget lines and even the RM should be avoided because you can usually do better for the price. All Corsair units made by Seasonic and Flextronics ( AX and AXi ) are world class. The CWT made units ( most of their lineup is made by CWT ) are usually middling quality to very good. Some like the CWT made CX series should be avoided in higher end builds due to cheap, substandard capacitors that die when stressed.
The newer Chicony Power Technology ( RM ) and Great Wall ( CS ) made units I would avoid.
Chicony made RM 750 fails in HardOCP testing. First Corsair to ever completely fail testing.
http://www.hardocp.com/article/2013/11/13/corsair_rm750_750w_power_supply_review/9#.VAAlgGd0y00
80 Plus, Bronze, Silver, Gold, Platinum and Titanium are only measures of efficiency NOT quality.
You want a unit listed here in tier 2 and up.
http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html