I have ordered (live in Seattle, WA area) 4x CM QuickFire Rapid keyboards in the last 3 weeks with 1x Browns being from Amazon, 2x Reds, 1x Blues from Newegg and can confirm that all are unbranded. Doesn't guarantee that you will get the same but they are selling at a decent rate so I'd bet if you order from Amazon or Newegg you'll more than likely get an unbranded one. Good luck!
-Truday