My card that came with my SCPH-77006 console that I bought in November 2007 was made in China and had a letter "F" on it too (lol.. the entire set was made in China - the PS2, controller and memory card).
Originally Posted by monteman
I have not opened the card before, but it has a green PCB.
I heard that cards that do not have a green PCB are fakes... but it doesn't sound like a solid solution for determining whether the card is genuine. :/
In fact, I have never managed to get any cards that were made in Japan - except for those old cards that I got when I bought my SCPH-10000 console (From a second-hand dealer).
Most of Sony's stuff were made in China starting from around 2002 to 2003 - all for the sake of cheap production costs.
Try installing FMCB on it. If it does install successfully, it is more likely to be a genuine card as not all compatible cards handle the MagicGate protection stuff properly (And would fail to work with FMCB at all).
Unmodified SCPH-77006 with SM 3.6
SCPH-39006 with M-chip modchip, SCPH-10281 NA and refurb Seagate 80GB HDD
SCPH-10000 v1.00 with SCPH-10190 PCMCIA NA and SCPH-20400 HDD unit