The item MS4096ASU-MB335 is a memory upgrade for the ASUS P6T WS Professional, which comes with 0 MB of RAM by default. The ASUS P6T WS Professional system can be upgraded to a maximum of 48 GB of RAM. For maximum memory expansion, the device has 6 (2 of 3) slots. Sometimes, the manufacturer's specifications regarding maximum memory expansion are outdated and may differ from our information. Why? Because technology advances rapidly or the revisions from memory manufacturers change so quickly that they can hardly keep up with certification, or older models are no longer validated. This is where Memorysolution steps in with extensive testing and guarantees you the continuous availability of upgrades, well beyond the manufacturers' production cycles. Our qualified memory module for the ASUS P6T WS Professional is fully functional even under full load and absolutely meets the manufacturer's specifications.