FWK means that it has a heatsink, it is for cars, and is waterproof (or something along those lines). The 18.97 for cars has the same letters.
This would be an awesome HV controller to have, assuming it wouldn't go up in smoke.
I have just recently heard about some other new controllers that will be coming out. They are called "Quark" controllers. The 33amp version has been sold on Ebay, but here is a link to specs on the more powerful ones:
http://sky-technology.co.kr/product_html/p_list.asp These controllers are inexpensive, but the price isn't yet posted. I am guessing that the 125amp one will go for ~$200-220.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz