We're all familiar with the 2.5" Serial ATA SSDs that Samsung makes available to end users. They're not the only drives in the company's stable, though. Samsung also has a line of PCI Express SSDs reserved for big PC vendors. These drives typically aren't sold in the channel, but they can be found inside select systems, and some of them are pretty sweet. Here are a few we spotted at Samsung's SSD Global Summit in Seoul, South Kora last week.