I received the KTK-15 from Witonics via Amazon. Listing said "carded" but that was not the case, came in a small zip bag. Crimping as per the original, the datasheets, and most photos out there. Print is sharp. There is also a dimple on the side of the end cap that seems to show up in photos and on original. I have more confidence in this fuse being legitimate than the original one received. The print on the first one I got is not bad, but not as crisp as this one from Witonics. I can't say the original one I received is not legitimate, but this one from W gives me more confidence. Witonics has good pricing on their own website and free shipping, it is where I will go for future product of a similar ilk.