Synology DS413 (4x3TB) ➔ Synology DS420+ (4x8TB). My Synology DS413 network attached storage (NAS) box has 4 x 3TB drives with an available space of about 8TB (one drive space is effectively redundant and 3TB drives aren’t actually 3TB). Just over nine years of service, the DS413 keeps ticking along, however, thanks to storing photos […]