The item location is also Shenzhen. Same factory or are there numerous factories producing these in China?
These parts are likely to be genuine Philips produced - God knows where, probably NOT China!!
There are literally hundreds of thousands of sellers like this one. I can take you to a markets area that is so large I can't describe it - maybe a square mile or bigger with 30 or so multistory buildings, one is 99 levels most others between four and 30 levels.
There are so many vendors you just cannot comprehend it EVEN when you see it for yourself. Most of us in countries like Australia simply have zero idea of the scale of things like this.
Shenzhen (the city) has a population of around 20 million (official estimates vary wildly) or basically the same as ALL OF Australia. It is about the size of 3 x Sydneys in land area. To say "they are in Shenzhen" is not relevant. Most westeners cannot picture the vast size of things like this as we have never seen anything like it - when seen it quickly becomes obvious why China is taking over the world in so many ways.
A single vendor such as this one will be operating from one small counter and have access to EVERYTHING available in the market - they won't have this RAM in stock as they don't have to. All they do is throw up 2000 ads on eBay etc listing anything they can think of and when you buy, the 'runner' goes to another vendor that will sell them the goods for the best price - simple as that. They are NOT a factory of any type despite how polished their ads are, just a small seller.
There are small "home" factories that refurbish I.C.s and screen print new numbers and details on the top - doesn't matter exactly what the chip currently is as long as the package is the same and the legs can be made straight. There is also a huge market for I.C.s pulled from junked electronics - these have the pins cleaned and straightened and are then usually sold as NOS.
I have learned most of this the hard way over the past 10 years and have my regular sellers I deal with who know they cannot trick me and simply don't try. I give them the list of what I want and they run around to LEGITIMATE sellers and get the stuff. I rarely have problems these days BUT still do occassionally.
Buying parts like this from a Chinese eBay seller is 100% pot luck.
The Homepin factory is an an outlying area of Shenzhen in a sub area with (a complete guess) around 200,000 similar sized factories. There are probably (another guess) about 100 areas around Shenzhen like this one. The sheer size of the place just cannot be described.
