ASUSTOR AS6204T 4-Bay NAS (supports iSCSI) The World's First High Performance Intel Braswell NAS Featuring 4K Playback to Enhance your Digital Home Lifestyle. Flagship NAS. Featuring a Quad-Core Processor and Hardware Encryption Engine for Demanding Enterprise Applications. The AS6204T is a 4-bay network storage server designed for small businesses featuring a dedicated hardware encryption engine that doubles data transfer speeds for encrypted data.