SYNOLOGY DS225+ is a Network Attached Storage (NAS) with 2 (bay) housings designed for domestic users and small businesses that need a powerful, centralized and secure data storage solution. It comes with 2 pre-installed SSD drives for a total capacity of 4T B. What distinguishes DS225+ is the combination of high performance and flexibility. It is powered by the Intel Celeron J4125 processor, a Quad-Core unit that effectively manages multitasking, multimedia transcoding and application execution. The 2GB RAM (DDR4) is expandable up to 6 GB, offering a considerable margin of performance improvement. Network connectivity is guaranteed by two LAN ports (a 2.5G and a standard Gigabit) that support the Link Aggregation, maximizing transfer speed and redundancy. This NAS, which runs the renowned Synology DiskStation Manager (DSM) operating system, is ideal for data management, backup, synchronization and hosting multimedia servers. ? Specifications Main Techniques Model: SYNOLOGY DS225+ (Product code: 15-130102471 or variant). Type of Device: NAS (Network Attached Storage) Desktop. Accommodation Units: 2 Hot-Swap Slots for HDD/SSD SATA 3.5" or 2.5". Archiving: SSD 2x 2TB (Total 4TB) Processor: Intel Celeron J4125 (Quad-Core). RAM memory: 2 GB DDR4 (Integrated, expandable up to 6 GB via a free DIMM slot). Network connectivity: 1 x LAN 2.5 Gigabit (2.5GBASE-T / RJ-45). 1 x Gigabit LAN port (1GBASE-T / RJ-45). RAID support: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1. External doors: Typically USB ports 3.2 Gen 1 (or earlier) for external backups. Operating system: Synology DiskStation Manager (DSM). Additional features: Support Btrfs with Snapshot, Virtual Machine Manager, Transcode 4K, Synology Surveillance Station.