QDA-A2MAR Specification
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Use two M.2 SATA SSDs in a single 2.5-inch SATA drive bay with RAID support for PC and NAS
Standard Warranty 1 year Supported Drives 2 x M.2 2280 SATA SSD (B Key) Host Interface SATA 6Gbps Supported Operating Systems 1. QTS 4.4.1 (or later)
2. Windows: Windows 7, 8.1, 10, Windows Server 2012 R2
3. UbuntuDimensions (L x W x H) 100.5 × 69.9 × 9.5 mm Weight 0.1 kg RAID Support RAID 0, 1 Note The connected drive may not reach its optimal performance due to protocol translation and some overhead.
All the drive data will be cleared upon drive initialization or RAID mode switching with the QDA-A2MAR. Ensure that all data is backed up beforehand.
Window and Linux PC supports all four modes mentioned above. QTS does not support Individual mode.
It is recommended that only drives with identical model numbers and capacities are used to create a RAID 0/1 group because the total storage space will be equal to the size of the smallest drive.
The SATA controller of the PC must support port multipliers to recognize two drives in the Individual mode configuration. Consult your system provider and install the latest drivers for your SATA controller.
Installing a QNAP disk adapter in another QNAP disk adapter is not supported. (e.g. QDA-A2MAR cannot be installed in the QDA-A2AR.)
TR-002/TR-004 RAID expansion enclosures do not support QDA-A2AR/QDA-A2MAR.
Computer SATA ports or the USB to SATA adapters/cables that do not support 12V output (+12V_SATA) are not compatible with the QDA-A2MAR. Please consult your computer vendor for the SATA port voltage output before purchasing the QDA-A2MAR.
QTS identifies the drives of QDA-A2MAR as a single volume. Installing at least two QDA-A2MAR in the NAS is required to use Qtier function.Architecture Diagram 
Note: QNAP reserves the right to replace partial parts or accessories if the original is no longer available from its manufacturer/supplier. Any replacement would be fully tested and verified to meet strict compatibility and stability guidelines and will deliver identical performance to the original.
Product images are for illustrative purposes only and may differ from the actual product. Due to differences in monitors, colors of products may also appear different to those shown on the site.
Designs and specifications are subject to change without notice.
| Minimum operating system requirements |
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| Software Utility Features |
Note: Actual performance may vary depending on operating environment and other factors, such as RAID mode, RAID configuration, disk model and capacity. Show more... |
QDA-A2MAR
Pan head screw x2 (for M.2 SSD)
RAID Switch Tool
M.2 SSD Thermal Pads x6
Quick Installation Guide (QIG)
Optional Accessories
Bundled accessories delivered together with the product such as expansion cards, power adapter, and accessories are covered with one-year warranty.
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