4TB Synology Plus HAT3300-4T NAS HDD Review – Worth It?

Take a close look at the 4TB Synology Plus (HAT3300-4T) hard disk drive for NAS systems, and find out how well it performs!
Updated @ 2025-06-30 : Updated with new videos, and operating temperature results.
Originally posted @ 2023-10-05
Synology Plus Series (HAT3300) NAS HDDs
The Synology Plus Series (HAT3300) hard disk drives are designed to populate their Network-Attach Storage (NAS) systems for homes and small businesses.
These Synology Plus Series drives are designed for light-to-intermediate use. Based on the Conventional Magnetic Recording (CMR) technology, they are similar to the WD Red and Seagate Iron Wolf range of NAS drives, with a 1 million hour MTBF and 180 TB per year workload rating.
The main advantage of these drives is that their firmware can be automatically updated using the DiskStation Manager (DSM) in Synology NAS systems.
4TB Synology Plus (HAT3300-4T) Price
The 4TB Synology Plus (HAT3300-4T) hard disk drive commands a slight premium over comparable drives like the 4TB WD Red (Price Check) and the 4TB Seagate IronWolf (Price Check).
Retailing at about $110 as of June 2025, it works out to a cost of $27.50 per TB. Here are some online purchase options:
The 4TB Synology Plus (HAT3300-4T) drive also comes bundled with certain Synology NAS systems.
Recommended : 2025 Synology NAS Drive Compatibility Policy Explained

4TB Synology Plus (HAT3300-4T) Specifications
The Synology Plus series offers storage capacities of 4TB, 6TB, 8TB and 12TB. With the exception of the 12TB model, all drives in this family are air-filled, and have a 5,400 RPM spindle speed.
The baby of this family, which we are reviewing today, is the 4TB Synology Plus drive, which has a model number of HAT3300-4T. Here are its key specifications:
| Specifications | 4 TB Synology Plus |
| Model | HAT3300-4T |
| Capacity | 4 Terabytes |
| Form Factor | 3.5-inch |
| Drive Design | Air |
| Recording Technology | Conventional Magnetic Recording (CMR) |
| Interface | SATA 6 Gb/s |
| Cache | 256 MB |
| Rotational Speed | 5,400 RPM |
| Max. Data Transfer Speed | 202 MB/s |
| Mean Time Between Failure (MTBF) | 1,000,000 hours |
| Workload Rating | 180 TB / year |
| Power Consumption | Idle : 3.96 W Random Read : 4.85 W Random Write : 4.85 W |
| Operating Temperature | 0°C to 65°C 32°F to 149°F |
| Non-Operating Temperature | -40°C to 70°C -40°F to 158°F |
| Operating Shock | 80 Gs (2 ms duration) |
| Non-Operating Shock | 300 Gs (2 ms duration) |
| Operating Vibration | 10 Hz to 22 Hz: 0.25 Gs, Limited displacement 22 Hz to 350 Hz: 0.50 Gs 350 Hz to 500 Hz: 0.25 Gs |
| Non-Operating Vibration | 5 Hz to 22 Hz: 3.0 Gs 22 Hz to 350 Hz: 3.0 Gs 350 Hz to 500 Hz: 3.0 Gs |
| Acoustics | Idle : 23 dBA Seek : 27 dBA |
| Size | 20.20 mm high 101.85 mm wide 147 mm long |
| Weight | 490 g |
| Warranty | 3 Years |
4TB Synology Plus NAS HDD Unboxing + Hands-On
The 4TB Synology Plus (HAT3300-4T) hard disk drive comes in a large cardboard box, with a window to let you peek inside.
On opening the box, you will see that the drive is well-protected. It’s sealed in an anti-static bag, placed within a plastic enclosure, and further protected from shock and vibration by two large foam inserts.
Recommended : Synology DS925+ NAS & DX525 Expansion Unit Revealed
Next Page > 4TB Synology Plus Features + Temperature
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