QNAP TR-004 4-bay 3.5" SATA HDD USB 3.0 By JD SuperXstore

Warranty 2 Years by QNAP 
 The TR-004 USB 3.0 RAID expansion enclosure allows you to expand the capacity of your QNAP NAS and PC. The TR-004 can also be utilized as a DAS (Direct-attached Storage) device, allowing you to directly access its content just by connecting it via USB. The TR-004 features four 3.5-inch SATA drive bays with multiple RAID configuration options and USB 3.0 Type-C connectivity to bring you a highly reliable and secure storage capacity expansion solution.

CPUMicro processor with hardware RAIDDrive Bay4 x 3.5-inch SATA 3Gb/sThe system is shipped without HDD.
For the HDD compatibility list, please visit https://www.qnap.com/compatibility/Drive Compatibility3.5-inch SATA 6Gb/s, 3Gb/s hard disk drives
2.5-inch SATA 6Gb/s, 3Gb/s hard disk drives
2.5-inch SATA 6Gb/s, 3Gb/s solid state drivesYou can only use one disk type (HDD or SSD) in a RAID group. Combining different types of disk in one RAID group is not supported.

TR-004 does not support the QDA-A2AR/ QDA-A2MAR.Hot-swappableUSB 3.2 Gen 1 port1 x Type-C USB 3.2 Gen 1 (USB 3.2 Gen 1)Form FactorTowerDimensions (HxWxD)168.5 × 160.2 × 219 mmWeight (Net)1.85 kgMax. number of HDDs/SSDs supported4Hard Drive Type4 x 2.5-inch or 3.5-inch SATA 3Gb/sOperating temperature0 - 40 °C (32°F - 104°F)Storage Temperature-20 - 70°C (-4°F - 158°F)Relative Humidity5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)Power Supply UnitExternal Power Adapter, 65W, 100-240VPower Consumption: HDD Sleep Mode4.17 WPower Consumption: Operating Mode, Typical18.21 WTested with drives fully populated.Fan1 x 120mm, 12VDCSystem WarningBuzzer