(3) | Write a Review
USB3.1 superspeed

Up to 80TB capacity with up to 410MB/s sequential read speed

  • The D4-300 is desktop storage with massive capacity ideal for storing photos, videos, documents and music. Super-fast performance with up to 410MB/s sequential read speeds and up to 80TB capacity.

Cross-Platform Compatibility for Data Backup

  • Use D4-300 to easily backup computer files, compatible with Windows, Mac, and Linux machines. No drivers needed!
  • This is NOT a NAS, it is a DAS and does NOT support RAID.
Real Super Speed with USB3.1(Gen1) Transport Protocol

Real Super Speed with USB3.1(Gen1) Transport Protocol

  • Powerful hardware with the latest USB3.1(Gen1) Type C connector.
  • Equipped with the latest USB Type-C interface, running USB 3.1 Gen 1 protocol. Testing with Samsung 850 evo 250GB SSD, the actual data transmission speed is up to 369.5MB/s(write) and 417.8MB/s(read).
  • All Aluminum-alloy shell and a low-noise fan.
  • The D4-300 is NOT a NAS, it is a DAS and does NOT support RAID.
Various applications

Expand the capacity of your NAS

The D4-300 can quickly add storage space to your NAS. It can be used as an external hardware RAID device for TerraMaster NAS. The D4-300 features USB3.1 connection and supports SSD/HDD drives for high-speed data access and massive capacity.

  • The D4-300 is NOT a NAS, it is a DAS and does NOT support RAID.
Better Protection

Better Protection

The D4-300 features an intelligent temperature control system and incorporates a low noise fan. The fan speed is automatically adjusted with the temperature of the hard drive to ensure that your hard drive remains at the optimal working temperature.

  • The D4-300 is NOT a NAS, it is a DAS and does NOT support RAID.
USB TYPE C
USB 3.1 Type-C High-speed Interface
  • Relying on the USB 3.1 Gen 1 super speed protocol, the D4-300's transmission speeds can reach up to 410MB/s (Testing with Samsung 850 evo 250GB SSD).
  • The D4-300 adopts the latest USB Type-C interface,Includes a Type C to Type-A cable.
red
Multi-Drive Compatibility
  • Compatible with diverse 3.5-inch SATA hard drive brands and models, as well as with 2.5-inch SATA hard drives and SSDs. Equipped with 4 drive slots, supports a drive capacity of up to 20TB, and a total storage capacity of up to 80TB (Users need to purchase their own hard drives).
  • With exclusive energy-saving technology, the D4-300 automatically enters sleep mode, along with your computer, to save energy and extend the life of your drives.
fans
Better Protection
  • The D4-300 features an intelligent temperature control system and incorporates a low noise fan.
  • The fan speed is automatically adjusted with the temperature of the hard drive to ensure that your hard drive remains at the optimal working temperature.
2 years
Brand new replacement for 2 year
  • Brand new replacement for 2 years.
  • Quick service in 24 hours!
Products
D4-300 TerraMaster D4-300
D4-320 TerraMaster D4-320
D6-320 TerraMaster D6-320
D4 SSD TerraMaster D4 SSD
Max. number of HDDs/SSDs 4 x 2.5" or 3.5" SATA 6Gb/s 4 x 2.5" or 3.5" SATA 6Gb/s 6 x 2.5" or 3.5" SATA 6Gb/s 4 x M.2 2280 NVMe Slots
Max. Storage 80TB (20TB x 4) 120TB (30TB x 4) 180TB (30TB x 6) 32TB (8TB x 4)
Interface USB3.1 Gen1 Type C (5Gbps) USB3.2 10Gpbs Type C USB3.2 10Gpbs Type C 40Gpbs USB Type C
Reading Speed (max.) 420MB/sec (tested by 4 SSD, in SingleDisk) 1025MB/s (4 SSD, Single Disk) 1030MB/s (6 SSD, Single Disk) 3257MB/s (4 SSDs, Soft-RAID0)
Writing Speed (max.) 390MB/sec (tested by 4 SSD, in SingleDisk) 1016MB/s (4 SSD, Single Disk) 1005MB/s (6 SSD, Single Disk) 1016MB/s (4 SSD, Single Disk)
Hardware RAID NO NO NO NO
RAID Mode NO RAID, only Individual disks NO RAID, only Individual disks NO RAID, only Individual disks NO RAID, only Individual disks