Synology DDR4 ECC So-DIMM 16GB (RAMEC2133DDR4SO-16G)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Applied models: Synology DiskStation DS3617xs</li><li>For expanding your Synology NAS server's memory capacity</li><li>DS3617xs comes with 16GB DDR4 ECC SO-DIMM (8GB x 2) by default and allows easy upgrade to 48GB (8GB x 2 + 16GB x 2) with RAMEC2133DDR4SO-16G</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ItzBNAUPL.jpg" noproxy>