KitGuru tried the Synology DS414j
A quote from the article:
Synology describes its new DS414j as the successor to the DS413. It's a 4-bay NAS device, aimed at home users and SOHO environments requiring up to 20TB of storage, and they put the emphasis on the ?retro looking black chassis, dual core CPU ? and USB 3.0 which combine to make it ?the fastest and most powerful J series NAS from Synology to date.?Synology DS414j Review @ KitGuru