Synology 5-Bay DiskStation DS1522+ (Diskless) & Network Upgrade Module adds 1x 10GbE RJ-45

Synology 5-bay DiskStation DS1522+ (Diskless)
The Synology DS1522+ is a versatile 5-bay NAS solution that is easy to scale and expand as your needs change, with optional support for up to 15 drives, fast networking, and NVMe SSD caching. Powered by Synology DiskStation Manager (DSM), it offers a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance.

Synology Network Upgrade Module adds 1x 10GbE RJ-45
The Synology E10G22-T1-Mini Network Upgrade Module adds 10GbE RJ-45 connectivity to compatible Synology systems,1 enabling small businesses and home users to maximize the performance potential of their deployments with high-performance network throughput

Product 1: Up to 736/796 MB/s sequential read/write throughput makes file operations quick and efficient
Product 1: Leverage built-in file and photo management, data protection, virtualization, and surveillance solutions
Product 1: Four 1GbE ports for simple integration into existing environments with optional 10GbE connectivity to tackle more specialized, bandwidth-heavy applications
Product 1: Add up to 10 extra drive bays with 2 DX517 expansion units for a maximum of 15 storage drives
Product 2: With Surveillance Station Centralized Management System (CMS), several to hundreds of Synology Deep Learning NVR and NAS devices can be managed, operated, updated, and protected from a central management server.
Product 2: Supports 10/5/2.5/1GbE connections to work with nearly any RJ-45 network environment
Product 2: Designed for maximum performance and reliability in Synology systems