TerraMaster D5-300C Diskless Direct Attached Storage Device
The TerraMaster D5-300C 5-Bay Direct Attached Storage (DAS) device is a diskless model that is priced at $229.99 shipped
and backed by a 2-year warranty. This device has five drive bays that are compatible with 2.5-inch and 3.5-inch SATA hard drives or SATA SSDs that are up to 10TB in capacity. The first two drive bays can be run as single disks or as 2-disk RAID 0 or RAID 1 array and the others act as single disks. Setup is simple and TerraMaster claims that you can get speeds of up to 410 MB/s with some drive configurations when a pair of drives are run in RAID 0. If you are looking for a DAS solution with a USB Type-C connection that makes mass storage with RAID easy this might be it!
The TerraMaster D5-300C DAS device comes in a plain box and inside you'll find everything you should need to get started TerraMaster includes the power brick, 40-inch long USB Type-C to USB Type-A cable, mounting screws, screwdriver, drive labels and a quick-start guide to get you up and running.
All you need to do is secure the drives that you'd like to run to each drive cage, slide them into the proper drive bays and then fire up the system. Keep in mind that the D5-300C has 5 drive bays. The first two are RAID capable, and the remaining 3 are independent. This is called a RAID 2 + 3 configuration (2 RAID drives and 3 single drives) by TerraMaster.
Once you get the drive fired up there is a rotary switch for RAID on the back of the system that needs to be adjusted. If you'd like to run RAID 0 or RAID 1 you'll need to use the supplied screwdriver to rotate the rotary switch pointer to the desired RAID type. Once you have the red arrow on the mode that you like you need to press and hold the reset button for five seconds for the RAID mode to be set. The front like will blink when this happens and eventually turn green for both of the RAID drives. If you are using an incompatible drive then the RAID mode won't be set. For example we tried to RAID 0 a couple of 12TB Seagate Ironwolf drives and it wouldn't work as the max supported disk size for RAID arrays is 10TB. We were able to get the 12TB drives to run in single mode without any issues. Since we wanted to test the speed of a RAID array we ended up using Samsung SSD 850 EVO 1TB SSDs ($299.99
) on the TerraMaster D5-300C and has no issues with those drives.
You can follow the setup steps in Windows below that needs to be done after you set the TerraMaster D5-300C to RAID 0 and resetting the device. You'll need to enter 'Disk Management' in Windows 10 to initialize the RAID array, assign it a drive letter and then have it formatted. The process takes a few minutes and after that you'll be able to access the drive like a normal hard drive on your system. You can also do this for each of the single drives that you may have in the system.
It should be noted that this system operates like a black box and that there is no software or web control panel available for it. This means that there is no way for the user to monitor it other than looking at the lights on the front panel. Here are what the lights on the front panel mean:
- Off: Hard drive not detected/hard drive in sleep mode.
- Green: Hard drive is ready.
- Green Flash:Reading/writing data.
- Red Flash: Hard drive fault/array damage.
- Data Recovery: One hard drive indicator flashes green, the other flashes yellow/orange. (data recovery happens automatically when a faulty drive in RAID 1 is replaced with a good one.)
If you need to power off the unit you'll need to press and hold the power button for four seconds. This might be too simple for some folks, but for others it might offer the basic storage functionality that they need. The image below shows our test unit with five drives installed and all properly working.
Let's take a look at the D5-300C performance benchmarks and power consumption numbers on the next page.
TerraMaster D5-300C Testing Results
TerraMaster D5-300C Benchmarks
Once the integrity check on the RAID 0 Array was complete we ran a couple benchmarks to see how the D5-300C performed with basic sequential Read and Write tests on our Dell XPS 13 9360 laptop that is powered by the latest Intel 8th Gen Core i7-8550U processor ($1,419.99 shipepd
Using CrystalDiskMark 6.0.0 x64 we were able to hit 395.3 MB/s Read and 436.6 MB/s Write. This is actually better than we expected to see as TerraMaster says that this product offers read/write speeds of up to 410 MB/s. We are hitting close to 440 MB/s Write in RAID 0 mode, so we are happy with that.
We fired up the ATTO disk benchmark utility and found that we were topping out at 453 MB/s Read and 453 MB/s Write, so it looks like our two Samsung SSD 850 EVO drives in RAID 0 do really well in this system on the SuperSpeed USB 3.0 Type-C interface.
In Windows 10 we copy/pasted four MKV movie files that totaled 11.0GB in size from our Dell XPS 13 9360 laptop to the TerraMaster D5-300C DAS. We found that we were getting 332 MB/s writing to the attached RAID 0 array and then we were getting up to 392 MB/s when pulling items from the TerraMaster D5-300C DAS. These are solid performance results that we are more than happy with!
TerraMaster D5-300C Power Consumption
TerraMaster says that the TerraMaster D5-300C is energy efficient and we were getting 5.1W of power draw at idle and up to 7.8W when both drives were being used. If you use more drives the power draw will go up as we were getting over 20 Watts at idle with five 12TB drives in the system when we were playing around with it.
Final Thoughts and Conclusions
The TerraMaster D5-300C is a simple way to add drives to a system for those that want a reliable, stable and quiet device that is offline. We has no issues streaming 4K Ultra HD videos and had fast data transfer speeds between this device and our Dell XPS 13 9360 laptop. If you are looking for a media server or mass storage server that is directly connected look no further! The build quality of the device was found to be fine and we liked the two quiet fans on the back of the unit that keeps hard drives nice and cool.
We wish a USB Type-C to USB Type-C cable was included as our laptop has a USB Type-C port, but the USB Type-C to USB Type-A cable worked just fine. It would be nice if more drives could be used in the RAID array to support more advanced RAID modes like RAID 6, but that would likely increase the price.
At $229.99 shipped
with a 2-year warranty it is easy to recommend the TerraMaster D5-300C 5-bay USB 3.0 DAS device with 2+3 RAID mode. It works well, is easy to setup and offers quick data transfers with speeds of up to 453 MB/s according to our own independent benchmark tests.
Legit Bottom Line:
The TerraMaster D5-300C was found to be fast, reliable and simple to use!