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Scalable NAS with SSD cache acceleration capability
DS920+ provides two built-in M.2 SSD slots so that you can take full advantage of Synology SSD Cache functionality

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A versatile entry-level 2-bay NAS for home and personal cloud storage
Over 113 MB/s reading, 112 MB/s writing

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Powerful backup NovaBACKUP
Built-in BitTorrent

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High-performance quad-core NAS for reliable home and personal cloud storage
File Station enables centralized file management on the NAS, connected devices, and connected clouds

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An affordable, high-performance 4-bay NAS optimized for home and SOHO users, running the latest TOS 4.1.x operating system.
ARM v8 quad-core 1.4GHz CPU with 2 GB RAM (not upgradeable), blazingly fast read/write speeds of more than 114 MB/s(RAID 0, WD Red 4TB x 4).

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One bay NAS for performance, reliability, and large capacity
Available fully populated with 2, 3, or 4 TB capacity

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USB 3.0 Type-C port for faster data transfer
Supports up to four SATA drives for reliable read and write performance

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4-bay home NAS with over 60 TB raw capacity support, suitable for data backup and file sharing
64-bit 4-core 1.4 GHz processor and 1 GB DDR4 memory

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2x M.2 SSD slots for SSD ́s
2 x 3.5″ or 2.5″ SATA HDD/SSD