Where should I go in Yangon to buy computer parts / electronics?

I own a Microsoft Surface Pro 2 and I've forgotten my charger back home.

I'm currently in Yangon and was wondering if there's an "electronics quarter" in town with a high density of computer parts / electronics stores where I might be able to find a replacement charger? (Alternatively, a Microsoft store would do but I'm less hopeful of that.)

I'm guessing that's my best shot of finding a replacement as opposed to hunting down individual stores in a city I don't know...