Highpoint"s NA211TB-LD can transform any system with a Thunderbolt connection into a powerful workstation! Small Systems no longer have to Sacrifice Expandability for Slimness or Convenience: Why sacrifice performance for portability Why give up efficiency for expandability With Highpoint Thunderbolt 2 Storage and PCIe Expansion Stations, you no longer have to trade the convenience of compact form factor and portable computing for the performance and versatility of a traditional desktop. Any Mac system with a Thunderbolt port can now harness the power and flexibility of full-size PCIe cards - all via a single compact port! Unparalleled Flexibility: Adding PCIe I/O support and external storage to your Thunderbolt capable Mac system has never been easier! The compact, stylish aluminum housing supports up to 3 Thunderbolt Aware full-height two-thirds length PCIe cards. The single-cable, hot-plug design allows you to quickly add or remove just the cards you need, exactly when you need them; keeping things trim, slim and efficient - just the way you like it.The NA211TB-LD is the perfect platform for any I/O requirement - whether adding video or audio capture card for a media project, networking support or external storage expansion for business applications, or simply adding SAS/SATA or USB 3.0 connectivity to your laptop. Built in Storage Capability: The 4 internal drive modules support any industry standard 2.5" SSD or hard drive - ideal for high-performance SSD"s. Pair with Highpoint Rocket RAID 4520/3620 hardware RAID card for maximum performance! External Storage Expansion Made Simple: The NA211TB-LD is the ideal host for Highpoint"s extensive selection of Thunderbolt Aware storage controllers; add SAS, SATA and USB 3.0 connectivity to any Thunderbolt host system - from simple hot-swap capable personal backup solutions to high-performance Hardware RAID configurations designed to tackle the most demanding professional media applications.