4TB USB-C portable backup SSD
Synology BeeDrive BDS70-4T 4TB Portable SSD
The Synology BeeDrive BDS70-4T is a compact 4TB USB-C portable SSD that combines up to 1,050 MB/s transfer speed with computer backup, file sync, mobile media transfer and supported local AI-powered file search.
- Capacity
- 4 TB
- Interface
- USB 3.2 Gen 2 (10 Gbps)
- Speed
- Up to 1,050 MB/s
- Size
- 65 × 65 × 15 mm
Portable local backup with simple file access
The BeeDrive BDS70-4T is designed to bring files from computers, phones, tablets and supported external sources into one locally stored backup device. Its desktop and mobile software supports automatic backup, file sync and wireless transfer workflows, while current supported systems can also use Deep Search for local AI-assisted file discovery.
Automatic computer backup
After setup, selected folders can be backed up when BeeDrive is connected, with files kept in directly accessible formats.
Flexible file sync
One-way and two-way sync options help keep selected files aligned across supported computers.
Mobile photo backup
The BeeDrive mobile app can back up supported phone and tablet media through the paired computer workflow.
BeeDrop transfer
BeeDrop enables wireless transfer from a supported mobile device to the connected computer.
Deep Search
On supported hardware and software, local AI-powered search can find images and documents using descriptive information.
Portable high-speed storage
A 43g enclosure and USB 3.2 Gen 2 interface provide up to 1,050 MB/s in a compact format.
Who is the Synology BeeDrive BDS70-4T best for?
A strong choice for
- Users who want 4TB of portable local storage
- Freelancers and small teams needing straightforward computer backup
- Photo and video users transferring media from supported mobile devices
- People who prefer local storage without a recurring cloud-capacity fee
- Supported computers that can use BeeDrive Deep Search
Consider another model if you need
- You need network access without a connected computer
- Your computer or mobile operating system does not meet the current requirements
- You require a ruggedised enclosure or a different connector
- You need more than 4TB of capacity
Key specifications
- Capacity
- 4 TB
- Dimensions
- 65 × 65 × 15 mm
- Weight
- 43 g
- Connector
- USB-C
- Interface
- USB 3.2 Gen 2 (10 Gbps)
- Speed
- Up to 1,050 MB/s
- Computer backup
- Windows 10 64-bit 1809 or later; Windows 11+; macOS 12+
- Mobile support
- iOS 15+; Android 10+
- Package
- USB-C cable and USB-C to USB-A adapter included
- Warranty
- 3 years
Full technical specifications
Hardware and package contents
| Model | BDS70-4T |
|---|---|
| Capacity | 4 TB |
| Dimensions | 65 × 65 × 15 mm |
| Weight | 43 g |
| Connector | USB-C |
| Interface | USB 3.2 Gen 2 (10 Gbps) |
| Speed | Up to 1,050 MB/s |
| Certifications | RoHS, FCC, CE, BSMI, VCCI, RCM, KC, UKCA and BIS |
| Included items | BeeDrive main unit, USB-C to USB-C cable, USB-C to USB-A adapter and Quick Start Guide |
| Warranty | 3 years |
Software requirements
| Deep Search on Windows | Intel Core i5 or AMD Ryzen 5, NVIDIA GPU with 6GB VRAM (RTX 2060 or newer) and at least 16GB RAM |
|---|---|
| Deep Search on macOS | macOS 15 or later, Apple Silicon M1 or later and at least 16GB RAM |
| Backup and mobility on Windows | Windows 10 64-bit version 1809 or later, or Windows 11 and later; excludes Windows 10 on ARM and Windows Server editions |
| Backup and mobility on macOS | macOS 12 or later |
| Phone and tablet support | iOS 15 or later; Android 10 or later |
Frequently asked questions about the Synology BeeDrive BDS70-4T
What is the Synology BeeDrive BDS70-4T?
It is a 4TB USB-C portable SSD with Synology software for supported backup, sync, mobile-transfer and local-search workflows.
How fast is the BeeDrive BDS70-4T?
Synology specifies transfer speed up to 1,050 MB/s over USB 3.2 Gen 2 under suitable conditions.
Can the BDS70-4T back up a computer automatically?
Yes. BeeDrive desktop can back up selected folders after setup when the device is connected to a supported computer.
Can the BDS70-4T sync files between computers?
BeeDrive supports configurable one-way and two-way file-sync workflows on supported systems.
Can phones back up to the BeeDrive BDS70-4T?
The mobile app supports backup and transfer workflows for iOS 15 or later and Android 10 or later through a supported computer.
What is BeeDrop on the BDS70-4T?
BeeDrop transfers selected files wirelessly from a supported mobile device to the computer connected to BeeDrive.
Does the BDS70-4T support macOS?
Yes. Current official requirements list macOS 12 or later for backup and mobility, with higher requirements for Deep Search.
What is required for Deep Search on the BDS70-4T?
Requirements differ by platform; Windows needs the stated CPU, NVIDIA GPU and memory, while macOS requires macOS 15+, Apple Silicon M1+ and at least 16GB RAM.
What comes with the BeeDrive BDS70-4T?
It includes the BeeDrive, USB-C to USB-C cable, USB-C to USB-A adapter and Quick Start Guide.
What warranty applies to the BDS70-4T?
Synology specifies a three-year warranty beginning from the purchase date shown on the receipt.
- Actual transfer speed depends on the host, port, cable, file sizes and workload.
- Review the current operating-system and hardware requirements before relying on Deep Search or mobile features.
- BeeDrive is direct-attached storage; network and mobile workflows require the supported BeeDrive software and a connected computer.
