Yes, Fasttech has authentic gear and clones. Some products are clones, as the original makers aren't around anymore. The Vamo from Fasttech is the same Vamo here in the States. It's a clone...but so is everything else. The Innokin's are authentic. I have purchased the iTaste 3.0, the SVD, three Vamo's, a KTS and K100 from Fasttech. All authentic. The evods come in packs of 7 and 10, I think, and while not Kanger's, they're made in the same Factory in Shenzhen, China, but the heads are not. So, I get the evods from Fasttech and the heads from US dealers. In five packs you can get them for about $5 - 6. I rebuild now, so I spend about a dime a piece. Many YouTube videos on doing this, I'm all thumbs, and I can do it. Four strikeouts, then went 12 for 14 on my first rebuilds of the evod and Protank.
I've had good luck with the DCT tanks from Fasttech, the X8, the cobra clone, some RDA's, the Innokin UCan, and the Nitecore I4 charger. The Panasonic batteries are good, and many vets order from them, though you can get them today on Amazon for about the same price. Except for the very high end gear, all our vaping supplies are made in China. Fasttech is just a large distributor of small electronics, and other than a two week delivery delay, they're one-half to one-third the price for the exact same US Vendor equipment, and unlike US vendors, they do take PayPal. Fasttech makes some cheap gear and I don't buy those. But I've spent about $700 and I think I have everything I want from them now except for the V3 telescoping mod, some pyrex DCT tanks, and maybe some more Panasonic CGR18650Ch batts, and maybe even the Kamry 200 and Innokin MVP. But that's it. I'm done with them. A good start, though, wouldn't you say?
My next evolution will be to some higher end gear, tanks, RBA's, a Semovar, etc. I continue to love this amazing Journey. Welcome to the Forum, good luck, happy shopping, Power UP and Vape On!