TangΘMangΘ
I like this name! It's just more like a name for a juice bar?

gang bang feng tang !
I don't know about feng/tang. I think people know you under the feng handle, so it will be easier to recognize you if you name yourself feng.
But I won't mind if you name the shop tang ! 
All right then, I should include feng in the name.

Geek Heaven
How about Geek Hell? Since people like the stuffs in my store, but their wallet don't.
Techkeys.us 
lol then I will be your first distributor? Putting "us" into the name may let people konw that I'm located in the US. But the thing is that after 2 years when I graduate, I'm not sure if I'll stay here or going back to China. :/
On a serious note. I think it should include feng rather than Tang. You have already established your products under the name feng. People refer to your caps as feng's caps etc and suddenly switching to calling them tang's caps from that store will probably cause some confusion. I'd stick with feng as a brand, or at least somewhere in the name.
That totally makes sense. I'll stick with feng then.
Fengs Keyboard Emporium
Edit: didn't see halversons suggestion lol
Great minds think alike! I do enjoy seeing keyboard in the title, but the only problem I foresee if Feng sells a lot more than just the boards themselves.
That's what I was thinking as well. I'm mainly selling keyboard's components such as keycaps. Not a big fan of selling keyboards themselves. So maybe putting "geek" into the name would be better than "keyboard".
I just came out a name "I don't sell keyboards" lol guessing it's a pretty impressive name. But in fact, I still sell a few kinds of keyboards.

stay away from feng imo if that's your name, nothing ethnic or
feng tech or feng geek will just sound like some cheap china drop shipper or wholesaler (unless that's what you're going for)
sorry no suggestion on what to name, but only what not to.
I realized that there're so many companies using the names including "tech". Which is why I came out with "geek". If it still sounds not good enough, what else could be?
Just because we know you as feng. I'm voting for Feng's Geek Emporium too
Do you guys think Emporium is the best word to say? I thought of these words: Zone, Box, and Place.
I'm trying to figure out which word sounds the coolest to you. I only know feng's keyboard store is the worst.

Geek-Keys
That's pretty cool. I'll keep that in mind.
