The DS923+ is suitable for demanding application workloads and a larger number of simultaneous users. Enjoy faster file indexing in Synology Drive, organized photos in Photos, and simultaneous file transfers. Shorten your transfer times with DS923+, designed to accelerate your workloads. Easily add NVMe drives and speed up your network for even better performance. Is your data spread across external drives and public clouds? The DS923+ brings your data together in one place and has 4 slots for more than 50 TB. Need more space? Expand with the DX517 to give you more than 120 TB of storage space.