PDP systems is a long standing memory maker, established in 1985 in Fremont, California. It has been far more recent, however, since they joined the competitive premium memory market, so this may be your first knowledge of them as computer enthusiasts.
The memory we are looking at today is part of their Patriot range of sticks, which feature either ultra high frequency or ultra tight timings depending on the sticks you choose. This particular model is a dual channel kit of XBLK PC3200, which uses Samsung TCCD chips on a non-JEDEC PCB.
You can buy this product for around £174 including VAT from www.pc-memory-upgrade.co.uk, who stock a wide range of performance memory.