realhotstuff.com usually does a great job and are a reputable seller. It's based on the US, so, unlike Chinese sellers, shipping will be free and fast. The pricing isn't the best, but the ones under $15 are usually China-based sellers, so $18 for a US seller is pretty decent.
Not good (read, bad) advice @s4mid4re
Realhotstuff.com is known to sell clones. A quote from acekard team and the AKAIO forums "The above two thumbnails are images of a fake/clone AK2i. Notice in the first image that the clone card is using the Actel design. This is the old AK2i design, sold by Ackard in 2009. Once sold, this design started out as the various R4 clones and later became the Ak2i clone. Please understand that you can no longer buy a real Acekard 2i with the Actel chip and the "window" in the back of the shell. Any resellers who order these kits new are stocking known clones. One such reseller is, RealHotStuff, who has openly said they can not see a difference in the kits. Keep in mind that AKAIO does not support clones and will not work on clones. Also, the larger difference, the fake/clone cards are not covered under the Acekard 1 year warranty.
Here is the
link to read it for yourself. Scroll down halfway down the page.