Intel DG41RQ Motherboard

Hi, I have a doubt about this. I checked the Motherboards datasheet it says that "DDR2 800 MHz DIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP) " but I couldn't found any 4GB DDR2 RAM, all I found is that for AMD. One of them I found on Aliexpress is this they said it is only...