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TerraMaster d9-320

About the Product

9-bay DAS enclosure for 3.5″ HDDs or 2.5″ SSDs
USB 3.2 Gen 2 Type-C interface (up to 10 Gbps)
Plug-and-play support: Windows, macOS, Linux
Independent power switches for each drive
Supports hot-swapping and intelligent cooling
Ideal for high-capacity storage expansion and media libraries

Description
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TERRAMASTER D9-320 Hard Drive Enclosure – 9Bay USB 3.2 Gen2 10Gbps Type-C External HDD Storage Independent Power Control for Each Bay Hot Swappable Plug and Play (Diskless)

Description

TerraMaster D9‑320 is a 9‑bay direct‑attached storage (DAS) enclosure that lets you connect up to nine SATA hard drives or SSDs to a computer via USB 3.2 Gen 2 (10 Gbps) for high‑speed bulk storage. It’s plug‑and‑play compatible with Windows, macOS, and Linux, features independent power switches for each drive, and supports hot‑swapping and intelligent cooling — making it ideal for large‑capacity media libraries and expansion storage.

Specification

1. Storage & Drives

• 9× drive bays (3.5″ SATA HDD or 2.5″ SATA HDD/SSD)
• Maximum raw capacity: up to ~216 TB (24 TB × 9)
• Operates in single‑disk mode (no hardware RAID)

2. Interface & Performance

USB 3.2 Gen2 Type‑C host interface (up to 10 Gbps)
Max read/write speeds: ~560/520 MB/s (single SSD); up to ~1016/960 MB/s (multi‑SSD configuration)
Supports hot‑swapping of drives

3. Compatibility

• OS support: Windows, macOS, Linux
• USB‑C cable included (C‑to‑C + A‑to‑C)

4. Power & Cooling

• 250 W internal power supply
• 3× 92 mm smart fans; ~22.5 dB(A) noise
• Independent power switches for each drive + master power switch

5. Physical

• Dimensions ~295 × 135 × 334 mm (H×W×D)
• Net weight ~6.5 kg

6. Environmental

• Operating temp: 0–40 °C; humidity: 5 %–95 % RH
• Certifications: CE, FCC, CCC, KC; RoHS compliance

7. Package Includes

• Host unit, USB cables (C‑C + A‑C), power cord & adapter, screws, installation guide

Advantages

Here are the main advantages of the TerraMaster D9‑320 DAS enclosure:

Massive storage expansion: Supports nine SATA drives (HDD/SSD), giving very high total capacity for media libraries, backups, and large data sets.
High‑speed USB 3.2 Gen 2 interface: Up to 10 Gbps transfer rates for fast data access and bulk file transfers.
Independent power control: Each bay has its own power switch plus a master switch, helping save energy and extend drive life by powering down idle drives.
Intelligent drive protection: Safe “head parking” and power‑off protection to help guard against drive damage and data loss during unexpected shutdowns.
Broad compatibility: Plug‑and‑play with Windows, macOS, Linux, and compatible with USB4/Thunderbolt interfaces, no drivers needed.
Efficient cooling: Temperature‑controlled, low‑noise fans help maintain optimal operating temperatures while minimizing noise.
Hot‑swappable drives: Allow drive changes without powering down the enclosure, improving convenience during maintenance or drive swaps.

Good to Know

✔ Uses single‑disk mode by default — you’ll manage RAID or software pools (like ZFS, Unraid, etc.) on a connected host; this enclosure itself doesn’t provide built‑in RAID.

✔ Compatible with many systems — including NAS software like TrueNAS, Proxmox, Unraid, when connected to a host that supports external storage expansion.

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