The item MS4096FSC417 is a memory upgrade for Fujitsu-Siemens computers that come with 2-4 GB of RAM from the factory. The system can be upgraded to a maximum of 32 GB of RAM. For maximum memory expansion, the device has 4 slots. Some manufacturers' specifications regarding maximum memory expansion may be outdated and can differ from our information. Why? Because technology is advancing 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 to ensure continuous availability of upgrades, well beyond the manufacturers' production cycles. Our qualified memory module for Fujitsu-Siemens computers is fully functional even under full load and absolutely meets the manufacturer's specifications.