3U 16-bay Thunderbolt™ 2 Storage and PCIe Expansion Solution The NA333TB is the first Thunderbolt™ 2 rackmount solution to combine integrated storage with PCIe expansion. The NA333TB is ideal for A/V professionals and Thunderbolt™ capable, compact form-factor computing platforms such as Mac Pro''s, Mac mini''s, iMacs, and Mac Book Pro''s. The integrated PCIe slots can support up to 3 Thunderbolt™ enabled PCIe cards. Transforms Small Form-Factor Systems into Powerful Editing Stations The 3U 16-bay NA333TB enclosure employs Intel''s latest Thunderbolt™ 2 interface technology , and delivers ultra-fast 20Gb/s I/O performance for any host platform with a Thunderbolt™ connection. The dual Thunderbolt™ 2 ports deliver a high-level of flexibility and can support daisy-chain configurations of up to six Thunderbolt™ devices. Built-In Storage Capability: 16 internal drive bays support industry standard 3.5" SAS/SATA hard drives. 3 PCIe Expansion slots: support full-size Thunderbolt™ Aware PCIe cards