QNAP QDA-A2AR Dual 2.5" SATA to 3.5" Drive Bay Adapter, Supports RAID 0/1/JBOD/Individual, 6Gb/s

Convert one 3.5" bay into a versatile dual-drive solution that boosts capacity, performance and redundancy. The QNAP QDA-A2AR drive bay adapter lets you install two 2.5" SATA HDDs or SSDs (7–9.5 mm) in a single 3.5" slot while offering hardware RAID modes (0/1/JBOD/Individual) and SATA III 6 Gb/s throughput. That means faster data transfers, reliable video writes for surveillance/NVRs, and RAID protection without burdening your server or NAS CPU.

Designed for IT and security deployments, this adapter is ideal for NAS, NVR and monitoring appliances that need compact, high-performance storage. It supports SSD caching and Qtier on compatible systems to accelerate random I/O and tiered storage workflows. The adapter can also serve as a bootable drive for PCs and is managed easily via the QNAP External RAID Manager utility on Windows.

Whether you’re consolidating drives in a rack, upgrading a surveillance recorder, or adding flexible storage to a monitoring workstation, the QDA-A2AR delivers space-efficient RAID and dependable performance. Add it to your NAS or NVR build to improve capacity and resiliency today.

• Maximize storage density: fit two 2.5" SATA HDDs/SSDs into a single 3.5" drive bay to save rack and chassis space
• Built-in hardware RAID (0/1/JBOD/Individual) for data protection and performance without using host CPU resources
• SATA III 6 Gb/s throughput for faster file transfers and more reliable video recording in surveillance and monitoring systems
• Bootable option for PCs and native support with QNAP External RAID Manager for easy setup and maintenance
• Enables SSD caching and Qtier integration in compatible NAS for accelerated I/O and optimized storage efficiency