We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 3.5 inch SATA hard drive rectangular metal casing

Synology Inc.

Synology Inc. HAT3300-4T 4TB 3.5" SATA internal hard drive

SKU CH-4GX8-P64RE MPN HAT3300-4T

A 4 TB 3.5" SATA hard drive built for 24/7 NAS operation with 5400 RPM, 256 MB cache and CMR technology

  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM5400 RPM
  • Cache256MB
  • UsageFor NAS systems
  • Form Factor3.5"

Options 4TB

  • Designed for 24/7 NAS operation with 180 TB/year workload rating
  • 2 million hours MTBF for long-term reliability
  • 256 MB cache and 5400 RPM deliver consistent CMR performance
  • Firmware updates applied directly through DSM without drive removal
  • Validated by over 500,000 hours of compatibility and stress testing

Synology HAT3300 Plus Series 4 TB NAS Drive

The Synology HAT3300-4T is a 3.5-inch SATA hard drive built for home and small-office NAS enclosures. It uses conventional magnetic recording (CMR) technology to deliver consistent write performance across its 4 TB capacity. The drive is engineered for 24/7 operation and validated through over 500,000 hours of compatibility and stress testing. Firmware updates are applied directly through Synology DSM without removing the disk.

SATA 6.0 Gb/s Interface and 5400 RPM Spindle

The single specification that determines fit is the SATA 6.0 Gb/s interface paired with a 5400 RPM spindle speed. This combination matches the drive bays and backplanes found in compatible Synology NAS units. The 256 MB cache buffers multi-user I/O streams while the 147 mm length and 20.20 mm height conform to standard 3.5-inch mounting dimensions.

180 TB/Year Workload Rating

Under sustained load the drive is rated for 180 TB of data written, read or verified per year. A 1.2 million hour MTBF figure reflects the statistical reliability target for always-on environments. Stringent validation and over 300,000 hours of additional testing ensure smooth operation during continuous multi-user workloads rather than short bursts.

Highlights

  • Designed for 24/7 NAS operation with 180 TB/year workload rating
  • 2 million hours MTBF for long-term reliability
  • 256 MB cache and 5400 RPM deliver consistent CMR performance
  • Firmware updates applied directly through DSM without drive removal
  • Validated by over 500,000 hours of compatibility and stress testing

Specifications

BrandSynology
SeriesHAT3300 Plus Series
ModelHAT3300-4T
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM5400 RPM
Cache256MB
UsageFor NAS systems
Form Factor3.5"
Height (maximum)20.20mm
Width (maximum)101.85mm
Length (maximum)147mm
Shipping weight0.41 kg
Package size178 × 152 × 25 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How does the 5400 RPM speed affect real-world performance in a NAS?

The 5400 RPM spindle and 256MB cache deliver steady throughput for multi-user file access and backup workloads, while keeping noise and power draw low for 24/7 operation.

What does the SATA 6.0Gb/s interface mean for installation and speed limits?

It connects to any standard SATA port on a NAS or motherboard; the link runs at up to 6.0Gb/s, and the drive’s own sustained rates determine actual transfer speed.

Will the 3.5-inch, 20.20mm-high chassis fit my Synology NAS bay?

Yes, the drive measures 147mm long, 101.85mm wide and 20.20mm high — the standard 3.5-inch form factor used by Synology Plus Series bays.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.