ShopAndroid has the OEM charger for $28.95: Samsung 2A USB 3.0 Travel Charger/Sync Cable 5ft for Galaxy S5, Galaxy Note 3, Galaxy Note Pro 12.2 - Android Wall Chargers - ShopAndroid

 

how about this
USB 3.0 Wall Charger Combo for Galaxy Note 3 or Galaxy S5 | Nextek Energy

 

I've used my note 2 charger on my 3 and it works just fine

 

I bought an Accellorize USB Folding Wall charger @ Walmart for $9.99. 5V 2.1A, let my Note 3 drain to 10% battery, then I started to charge. 90 minutes later I was at 100%.

 

Today I saw some OEM Samsung 2A wall chargers with the USB 3.0 cable on eBay for about $10.

 

You don't need a USB 3 cable to charge - only a mini USB. I use a standard wall charger as well as a car charger that I have for my Blackberry (uck - work issue) and it works just fine. Charges at a good rate.

 

The phone charges fast anyways. Just use the stock charger. you can get them cheap.

I find good microUSB cables feel a lot more stable/secure in the phone than the Samsung USB 3.0 cable, which always feels a bit... loose/with a lot of jiggle.

Probably why they didn't use it on the Note 4.