Synology DS420+ 32TB 4 Bay Desktop NAS Solution | Installed with 4 x 8TB Seagate Iron Wolf Drives Average 15% performance boost to photo indexing and other computing-intensive operations, as well as database response time Built-in M. 2 2280 NVMe SSD slots permit cache acceleration without occupying storage drive bays Access, share, and sync your data easily across different operating systems and devices Back up critical data and reduce your Recovery Time Objective (RTO) with Snapshot Replication Organize and stream music, video, and photo collections across all your devices Synology Disk Station DS420+ is a network attached storage solution for smooth data sharing, video streaming, and photo indexing. Two built-in M. 2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance.