DS216SE and DS218j and DS218 and DS218play RAM upgrade – NAS Compares
How to upgrade RAM in Synology DS216+ II - YouTube
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Synology DiskStation DS216se NAS Server Marvell ARMADA 370 88F6707 800 MHz 256 MB RAM DDR3 SDRAM Serial ATA600 Controller RAID Supported 0 1 Basic Hybrid RAID JBOD 2 x Total Bays 2
Synology DS216+II: Upgrade memory
Andriy Fedorov: How to upgrade memory in Synology DS216+ and DS216+II