UGREEN 70499 Aluminum 2.5-Inch SATA Enclosure, USB-C, 6Gbps
UGREEN 70499 Aluminum 2.5-Inch SATA Enclosure, USB-C, 6Gbps
Overview
UGREEN 70499 turns one 7mm or 9.5mm 2.5-inch SATA HDD or SSD into an aluminum USB-C external drive for a compatible USB-C host. The guide below separates drive protocol, physical size, host link and real-world limits so buyers can choose safely without confusing SATA, M.2 and NVMe.

Key features
Storage role
turns one 7mm or 9.5mm 2.5-inch SATA HDD or SSD into an aluminum USB-C external drive for a compatible USB-C host.
Supported drive
2.5-inch SATA I/II/III HDD or SSD, up to 9.5mm high.
Connection path
USB-C receptacle on enclosure; supplied 50cm USB-C-to-USB-C data cable; internal SATA III, 7+15-pin.
Thermal and controller design

Understand the complete storage path
1. The drive
2.5-inch SATA I/II/III HDD or SSD, up to 9.5mm high.
2. Internal bus
SATA III, 7+15-pin. This is the protocol used between the installed drive and bridge.
3. Enclosure bridge
4. Host connection
USB-C receptacle on enclosure; supplied 50cm USB-C-to-USB-C data cable. The host port, cable and any hub must support the required data mode.
Do not shop by shape alone: not for 3.5-inch, IDE/PATA, M.2 SATA, M.2 NVMe or mSATA drives. An M.2 notch does not by itself identify SATA versus NVMe, and a USB-C connector does not guarantee USB4 or 10Gbps.

Drive compatibility: form factor, key and capacity
Compatible: 2.5-inch SATA I/II/III HDD or SSD, up to 9.5mm high.
Not compatible: not for 3.5-inch, IDE/PATA, M.2 SATA, M.2 NVMe or mSATA drives.
Brand examples are not enough: the same SSD brand can sell SATA and NVMe products under similar names. Check this model’s protocol, dimensions, key and any pre-installed heatsink before purchase.

Performance reality: link rate versus file speed
The host link may be 10Gbps-class, but the SATA III drive bus is 6Gbps theoretical. Actual file speed is lower and no SATA drive becomes NVMe-speed through an enclosure.
- Large sequential files usually transfer faster than folders containing thousands of small files.
- HDD mechanics, SSD cache exhaustion, encryption, antivirus scanning and thermal throttling can dominate the result.
- UASP, TRIM and S.M.A.R.T. require compatible drive, bridge, host controller, operating system and software; a feature label does not force every host to expose it.
- Backward compatibility means operation at the slower negotiated link; it does not preserve the headline speed.

Use scenarios
Portable SATA SSD
Turn a spare 2.5-inch SATA SSD into compact external storage for documents and project files.
Old laptop drive reuse
Give a healthy 7mm or 9.5mm laptop SATA HDD/SSD a second role after checking for encryption and file-system compatibility.
Console or router storage
Use only if that host supports USB mass storage, the drive capacity and the required format; reformatting can erase existing data.
Backups and archives
Build a scheduled backup target, then keep a second independent copy. An enclosure is storage hardware, not a complete backup strategy.
Drive inspection
Read a removed drive on another computer when the drive is electrically healthy, unlocked and formatted in a file system the host understands.

Setup and usability guidance
- Step 1: Disconnect power and USB. Confirm the bare drive is the supported SATA form factor and has no protruding rails, caddy or adapter attached.
- Step 2: Open the enclosure, align the drive’s 7+15-pin SATA connector and slide it straight into the socket. Never rock or force the thin plastic tongue.
- Step 3: Fit the supplied EVA spacer for a thinner 7mm drive when applicable, then close the housing without trapping the cable or pressing on the drive.
- Step 4: Connect the supplied data cable directly to a suitable host port. Avoid unpowered hubs during first detection.
- Step 5: If the drive is new, open the operating system’s disk utility, verify the correct disk by capacity/model, then initialise, partition and format it. Formatting erases data.
- Step 6: If the drive already contains data, do not initialise or format it merely because the host prompts you. First check encryption, file system, health and the original machine.
- Step 7: Before disconnecting, finish all transfers, eject or safely remove the volume in the operating system, wait for activity to stop and then unplug or switch off.
Critical distinction: “Not visible in File Explorer/Finder” does not automatically mean hardware failure. A blank, offline, encrypted, unsupported or unmounted disk can appear only in the system disk utility.
Migration, cloning and data-recovery planning
Before migration
Back up irreplaceable files separately. Record encryption/recovery keys and confirm source and target health before changing partitions.
Cloning is software-driven
This enclosure exposes one drive; it has no standalone clone button. Use trusted software and verify the copy before erasing the original.
Booting is not guaranteed
External boot depends on the computer firmware, operating system, security policy, partition scheme and licensing—not just the enclosure.
Recovery has limits
An enclosure cannot repair failed heads, damaged NAND, controller faults, corrupted encryption or severe file-system damage. Repeated retries can worsen a failing drive.
Compatible devices and systems
Listed/class: Windows, macOS, Linux and ChromeOS; USB-C laptops/tablets are the clearest fit. TV, router or console use needs a compatible USB-C storage port or a suitable data cable/adapter and supported formatting.
Computers
Most modern systems support USB mass storage, but file-system write support differs across Windows, macOS and Linux.
Phones and tablets
A matching connector is insufficient: the mobile host must support USB OTG/mass storage, the chosen file system and the enclosure’s power demand.
TVs, routers and consoles
Check the device manual for USB generation, file system, partition table, maximum capacity and whether formatting is mandatory.
Hubs and adapters
An extra hub or converter can reduce speed or power stability. Test directly on the host before diagnosing the enclosure.

What this product does
- Turns one 7mm or 9.5mm 2.5-inch SATA HDD or SSD into an aluminum USB-C external drive for a compatible USB-C host.
- Provides the path: SATA III, 7+15-pin to USB-C receptacle on enclosure; supplied 50cm USB-C-to-USB-C data cable.
- Supports the drive boundary: 2.5-inch SATA I/II/III HDD or SSD, up to 9.5mm high.
- Exposes the drive to a compatible host for normal file access, formatting, backup, migration or supported cloning software.
What this product does not do
- Not for 3.5-inch, IDE/PATA, M.2 SATA, M.2 NVMe or mSATA drives.
- It does not include an SSD/HDD or add capacity by itself.
- It does not guarantee the theoretical link rate as sustained file throughput.
- It does not bypass passwords, BitLocker/FileVault encryption, permissions or unsupported file systems.
- It does not repair a failing drive, replace a backup, provide RAID or perform unattended offline cloning.
- It does not make a host support capacities, formats or game-install rules that the host manufacturer excludes.
What to do
Verify the drive
Read the drive label/data sheet for protocol, physical size, key and thickness before opening the enclosure.
Use the supplied path
Start with USB-C receptacle on enclosure; supplied 50cm USB-C-to-USB-C data cable. Connect directly to a known-good host data port.
Protect the thermal path
Install pads as directed, keep vents clear and allow airflow during sustained transfers.
Eject and keep backups
Safely remove before unplugging and maintain at least one independent copy of important data.
What not to do
Do not force connectors
Misaligned SATA or M.2 connectors can be damaged by surprisingly little force. Recheck orientation and protocol.
Do not format blindly
If a host asks to initialise or erase an existing drive, stop until you know why and have a backup.
Do not unplug during activity
Removing USB or power during writes can corrupt files, file systems or the drive translation layer.
Do not block cooling
Do not wrap, stack or operate on soft insulating surfaces during sustained transfer.
Warnings and limitations
Data first: an enclosure can expose a drive; it cannot guarantee the integrity of the data already on it. Keep independent backups before migration, repartitioning or firmware work.
Power: bus power depends on the host. If detection resets under load, remove unpowered hubs and use the supplied cable on a stronger direct port.
Heat: warmth can be normal, especially with NVMe. Stop use for smoke, burning smell, deformation, liquid ingress, repeated drop-outs or abnormal mechanical HDD sounds.
Handling: protect bare drives from electrostatic discharge; hold an SSD by its edges, avoid touching gold contacts and never move a spinning 3.5-inch HDD roughly.
Removal: wait for all writes, eject in the OS, allow the activity indicator to settle, then disconnect. Auto-sleep is not a substitute for safe removal.
Technical specifications
| Brand / SKU | UGREEN 70499 |
|---|---|
| Product role | turns one 7mm or 9.5mm 2.5-inch SATA HDD or SSD into an aluminum USB-C external drive for a compatible USB-C host |
| Supported drive | 2.5-inch SATA I/II/III HDD or SSD, up to 9.5mm high |
| Excluded drive types | not for 3.5-inch, IDE/PATA, M.2 SATA, M.2 NVMe or mSATA drives |
| Internal interface | SATA III, 7+15-pin |
| Host connection | USB-C receptacle on enclosure; supplied 50cm USB-C-to-USB-C data cable |
| Nominal link | USB 3.1 Gen 2-capable bridge; SATA data path up to 6Gbps |
| Performance note | The host link may be 10Gbps-class, but the SATA III drive bus is 6Gbps theoretical. Actual file speed is lower and no SATA drive becomes NVMe-speed through an enclosure. |
| Housing / thermal design | Silver aluminum-alloy shell |
| Storage features | UASP, TRIM, LED status and aluminum heat spreading; S.M.A.R.T. availability depends on host software and bridge pass-through |
| Cable | 50cm USB-C-to-USB-C cable. USB-A host cable is specifically not included |
| System/device class | Windows, macOS, Linux and ChromeOS; USB-C laptops/tablets are the clearest fit. TV, router or console use needs a compatible USB-C storage port or a suitable data cable/adapter and supported formatting |
Troubleshooting guide
No device at all
Disconnect, power down, reseat the drive and retest with the supplied cable directly on another known-good host data port. Verify the drive protocol and orientation.
Enclosure detected, no volume
Open Disk Management/Disk Utility. A new disk may need initialisation; an old disk may be offline, encrypted or use an unsupported file system. Do not erase valuable data.
Slower than expected
Confirm negotiated USB mode, remove slow hubs, use the supplied cable, test a large file and check SSD/HDD health, cache and temperature. Link rate is not file speed.
Disconnects under load
Check cable seating, direct-port power, thermal-pad placement and airflow. For SKU 50422, use the supplied 12V/2A adapter. Stop if the drive reports health errors.
Read-only or permission errors
Check write protection, ownership, encryption and file-system support. macOS and Windows do not natively write every file system used by the other.
Console/TV asks to format
That host may require its own partition and file system. Formatting erases the drive; move needed data elsewhere first and review the host manual.
Package contents
1 Ă— UGREEN 70499 enclosure, 1 Ă— 50cm USB-C-to-USB-C data cable, 1 Ă— user guide; USB-A cable and SSD/HDD are not included
No host computer, phone, tablet, console, TV, router, SSD/HDD, cloning software or data-recovery service is included unless explicitly named above.
Product-specific FAQ
What is UGREEN 70499 made to do?
Which drives fit?
Does it support both SATA and NVMe?
What is the real maximum speed?
What capacity is supported?
Will a new drive appear immediately?
Can it clone or migrate my system?
Can I use it with a console, TV or router?
Why is the drive not detected?
Is warmth normal, and how should I disconnect?
What is included?
model check before ordering
Match SKU 70499, the supported drive protocol/form factor, capacity guidance, supplied cable and the host’s data capability. Similar-looking UGREEN enclosures can differ in SATA versus NVMe, USB-A versus USB-C, power requirements and speed ceilings.