Synology DS920+ 4 Bay NAS DiskStation Diskless 4GB DDR4 RAM

Description

Two built-in M.2 2280 NVMe SSD slots permit cache acceleration without occupying storage drive bays.
Intel quad-core processor with AES-NI hardware encryption engine
4 GB DDR4 memory (expandable); Scalable up to 9 drives with Synology DX517
Average 15% performance boost to photo indexing and other computing-intensive operations, as well as database response time.
By default, two camera licenses are installed; extra licenses can be purchased (CLP1, CLP4, or CLP8)