NET NAS SERVER QNAP TR-004, 4 HDD BAY, USB Type-C 3.2 Gen 1

CPU Micro processor with hardware RAID
Drive Bay 4 x 3.5-inch SATA 3Gb/s
Drive Compatibility 3.5-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 drives
You 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-swappable
USB 3.2 Gen 1 port 1 x Type-C USB 3.2 Gen 1 (USB 3.2 Gen 1)
Form Factor Tower
Dimensions (HxWxD) 168.5 × 160.2 × 219 mm
Weight (Net) 1.85 kg
Max. number of HDDs/SSDs supported 4
Hard Drive Type 4 x 2.5-inch or 3.5-inch SATA 3Gb/s
Operating Temperature 0 – 40 °C (32°F – 104°F)
Storage Temperature -20 – 70°C (-4°F – 158°F)
Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit 65W adapter (12VDC), 100-240VAC
Power Consumption: HDD Sleep Mode 4.17 W
Power Consumption: Operating Mode, Typical 18.21 W
Tested with drives fully populated.
Fan 1 x 120mm, 12VDC
System Warning Buzzer
Kensington Security Slot