Synology Plus Series 3.5-inch SATA NAS Hard Drive
PRODUCT DESCRIPTION
Synology Plus Series 3.5" SATA HDD HAT3300-4T / HAT3320-8T / HAT3320-20T - 3 Years Warranty
Built for Synology NAS
Synology Plus Series drives are validated for Synology DiskStation and RackStation systems for small and medium businesses, with firmware updates delivered through DSM.
24/7 CMR Reliability
CMR drives rated for always-on NAS operation in multi-bay systems.
Choose Your Capacity
Select 4 TB (HAT3300, 5,400 rpm) for quiet, efficient storage, 8 TB (HAT3320, 7,200 rpm) for higher throughput, or 20 TB (HAT3320, helium-sealed) for maximum density.
Synology Plus Series HDD Datasheet — Technical Specifications
General
| Product Name | Synology Plus Series HDD |
| Models | HAT3300-4T, HAT3320-8T, HAT3320-20T (HAT3300-2T end of life) |
| Form Factor | 3.5" |
| Interface | SATA 6 Gb/s |
| Sector Size | 512e |
| Warranty | 3 years (Synology) |
HAT3300-4T (4 TB)
| Spindle Speed | 5,400 rpm |
| Cache | 256 MB |
| Recording | CMR |
| Drive Design | Air |
| Sustained Transfer Rate | 202 MB/s |
| Workload Rating | 180 TB/year |
| MTBF | 1,000,000 hours |
| Power (Idle) | 3.96 W |
| Power (Random R/W) | 4.85 W |
| Acoustics (Idle / Seek) | 23 dB / 27 dB |
| Operating Temperature | 0–65 °C |
| Dimensions (H x W x D) | 20.2 x 101.85 x 147 mm |
| Weight | 490 g |
| UPC / EAN | 846504005123 / 4711174725120 |
HAT3320-8T (8 TB)
| Spindle Speed | 7,200 rpm |
| Cache | 512 MB |
| Recording | CMR |
| Drive Design | Air |
| Sustained Transfer Rate | 281 MB/s |
| Workload Rating | 300 TB/year |
| MTBF | 1,200,000 hours |
| Power (Idle) | 5.74 W |
| Power (Random R/W) | 9.07 W |
| Acoustics (Idle / Seek) | 34 dB / 35 dB |
| Operating Temperature | 5–60 °C |
| Dimensions (H x W x D) | 26.1 x 101.85 x 147 mm |
| Weight | 755 g |
| UPC / EAN | 846504006342 / 4711174726349 |
HAT3320-20T (20 TB)
| Spindle Speed | 7,200 rpm |
| Cache | 1 GB |
| Recording | CMR |
| Drive Design | Helium-sealed |
| Sustained Transfer Rate | 295 MB/s |
| Workload Rating | 180 TB/year |
| MTBF | 1,200,000 hours |
| Power (Idle) | 4.35 W |
| Power (Random R/W) | 7.62 W |
| Acoustics (Idle / Seek) | 20 dB / 32 dB |
| Operating Temperature | 5–60 °C |
| Dimensions (H x W x D) | 26.1 x 101.85 x 147 mm |
| Weight | 730 g |
Compatibility & Applications
Compatible Systems
Synology DiskStation and RackStation models such as the DS225+, DS425+, DS725+, DS925+, DS1525+, DS1825+, the neo+ models and RS822RP+. Check Synology's compatibility list for your exact model.
Typical Use
24/7 file sharing, backup and surveillance storage in small and medium business NAS.
Selection Tip
For heavier workloads (550 TB/year) and a 5-year warranty, choose the Synology Enterprise Series HDD.
Package Contents & Synology Ordering Information
In the Box
1 x Synology Plus Series 3.5" SATA hard drive (bare drive).
Synology Hard Drives at SourceIT
| Model | Key feature |
| HAT3300-2T | Plus, 2 TB, 5,400 rpm (end of life) |
| HAT3300-4T | Plus, 4 TB, 5,400 rpm |
| HAT3320-8T | Plus, 8 TB, 7,200 rpm |
| HAT3320-20T | Plus, 20 TB, 7,200 rpm, helium |
| HAT5300-12T | Enterprise, 12 TB, 7,200 rpm |
| HAT5310-16T | Enterprise, 16 TB, 7,200 rpm |
| HAT5310-20T | Enterprise, 20 TB, 7,200 rpm |
| HAT5320-24T | Enterprise, 24 TB, 7,200 rpm |
Official Synology Videos
Synology Hard Drives: Purpose-Built Drives (official Synology channel)
Synology's Plus Series Drives for Small and Medium Businesses — webinar (official Synology UK & Nordics channel)
Datasheet & Downloads
| Datasheet | Plus Series HDD Datasheet (PDF) |
| Specifications | Plus Series HDD on synology.com |
| Drive compatibility | Synology compatibility list |
Frequently Asked Questions — Synology Plus Series HDD
Which capacity should I pick?
4 TB (5,400 rpm) for quiet small-office NAS; 8 TB (7,200 rpm) for higher throughput; 20 TB for the most capacity per bay.
Are they CMR drives?
Yes, Synology Plus Series HDDs use CMR recording.
Is the 2 TB still available?
No. The HAT3300-2T has reached end of life; choose the 4 TB or larger.
What warranty do I get?
3 years Synology warranty.
Do I get a GST invoice?
Yes. Supplied by SourceIT in Singapore with a GST invoice.
