Synology DiskStation DS1515. High-performance and reliable. Ready for your growing needs. 5 Bay Pedastal NAS. Featuring a quad-core processor, hardware encryption engine, and floating-point unit, DS1515 is a powerful, expandable 5-bay NAS server that delivers outstanding data transmission speed. With built-in four Gigabit LAN ports featuring failover and Link Aggregation, plus High Availability and SSD read/write cache support, DS1515 offers the reliable storage solution at a cost-effective price point for your growing needs.