Introduction

UGREEN has released a range of Thunderbolt 5 products, including the Thunderbolt 5 M.2 NVMe SSD enclosure. It features Intel’s JHL9480 controller and supports up to 80Gbps bandwidth, fully unlocking the performance potential of PCIe 4.0 SSDs. It is compatible with both Windows and macOS, making it suitable for devices such as the MacBook, Mac mini, and Razer Blade 18.

To ensure stable performance, the enclosure adopts a quad-layer cooling system: a metal housing, an internal airflow channel, and a smart PWM-controlled turbo fan. This helps maintain low SSD temperatures and ensures fast, reliable file transfers—even for large data loads. It also comes with a Thunderbolt 5 cable for easy connectivity. Next, let’s take it apart to see its internal components and structure.

Product Appearance

The front of the packaging features the UGREEN logo, a product image, the product's name, and its key selling points.

The back of the packaging displays the product specifications and manufacturer information.

Model: D705

Input: USB-C x1

Output: M.2 M-Key x1

Transfer Rate: Theoretical maximum transfer rate of 80Gbps

Compatible M.2 Interface: M-Key / B+M Key

Supported SSD Size: 2280 M.2 NVMe SSD

Power Supply: 5.0V 3.0A Max

Compatible Systems: Windows / macOS

The package includes the UGREEN Thunderbolt 5 SSD enclosure, a dual USB-C cable, a protective silicone case, a screwdriver, spare screws, a thermal silicone pad, and some documents.

A closer look at the screwdriver, spare screws, and thermal silicone pad.

The dual USB-C cable features black plastic housings on both connectors, with one end marked "UGREEN" and the other displaying the Thunderbolt 5 logo.

The length of the cable is about 81 cm (31.89 inches).

ChargerLAB POWER-Z KM003C shows that the dual USB-C cable includes an E-Marker chip. It not only supports Thunderbolt 5 data transfer speeds up to 80Gbps but also USB PD 3.1 fast charging up to 240W.

The protective silicone case features cutouts on all sides to ensure proper ventilation, and it does not affect heat dissipation.

The SSD enclosure continues the series' design language, featuring a rose gold metal plate with a textured surface that enhances both aesthetics and refinement, while also improving heat dissipation.

The top corners feature laser engravings of the UGREEN logo and “80Gbps” respectively.

There is a fastening screw located at the upper right corner.

There is an indicator light at the lower left corner.

Both ends have ventilation holes for cooling. This end features the USB-C port.

The other end is equipped with ventilation holes for heat dissipation.

The side features a laser-engraved Thunderbolt logo.

The bottom right corner of the enclosure also contains product information.

Model: D705

Input: 5.0V 3.0A Max

The length is about 118.11 mm (4.65 inches).

The width is about 46.19 mm (1.82 inches).

The thickness is about 23.18 mm (0.91 inches). 

That's how big it is in the hand.

The weight is about 198 g (6.98 oz).

The weight with the protective silicone case is about 227 g (8.0072 oz).

Teardown

Next, let's take it apart to see its internal components and structure.

Remove the screws to open the top metal cover.

The interior features a plastic mid-frame.

Remove the plastic mid-frame, which has cushioning foam pads attached to its bottom.

The PCBA module is secured with screws.

The cooling fan connects to the PCBA module via a plug-and-play wired connector.

After removing the PCBA module, the cooling fan is found to be secured with screws, and a thermal pad is placed at the Thunderbolt controller area.

The front side of the PCBA module houses components such as the USB-C interface controller, Thunderbolt controller, buck converter, memory chip, and buffer gate chip.

The back contains memory, a buffer, a level shifter, an LED indicator, and other components.

The USB-C socket is soldered using through-hole technology.

Close-up of a chip marked "82P" located next to the socket.

The USB-C interface controller is from Infineon, model CYPM1322-97BZXI, part of the EZ-PD PMG1-S3 series high-voltage microcontroller chips. It features a built-in ARM Cortex-M0+ MCU, 256KB Flash memory, 32KB SRAM, integrated voltage regulators and protection circuits, and comes in a 97-ball BGA package.

The TI CSD87501L is a 30V-rated dual NMOS transistor with an on-resistance of 6.6mΩ, packaged in a 3.37 × 1.47 mm grid-array substrate.

Close-up of an unmarked chip.

Close-up of the LED indicator.

The Thunderbolt controller is from Intel, model JHL9480, codenamed Barlow Ridge. It supports four PCIe lanes configured as x4 Gen 4 and includes features such as ACS, FBP, PTM, and P2P. It supports 128/256-byte payload sizes. For DisplayPort, it offers 2 DP sinks and 3 DP sources, supports DP 2.1 tunneling and retiming, and supports x1/x2/x4 modes with data rates ranging from 1.62Gbps to 20Gbps. Additional features include SST, MST, DSC 1.2, FEC, LTTPR, and Panel Replay. The chip comes in an FC-CSP package.

Close-up of the 25.000 MHz clock crystal oscillator.

The external memory is from Winbond, model W25Q16JWSNIQ, with a capacity of 2MB, packaged in an SOIC-8 form factor.

Close-up of the external buck inductor for the Thunderbolt controller.

The buffer is from TI, marked with H17R, model SN74AUP1G17. It features a Schmitt-trigger input and comes in a SOT-23 package.

The buffer gate chip is from TI, marked with NENJ, model SN74LV1T126. It features a tri-state output and is housed in a SOT-23 package.

The other buffer gate chip is also from TI, marked with 37RH, model SN74LV1T125, and likewise features a tri-state output.

The four-channel unidirectional level translator is from TI, model TXU0104. Its fully configurable dual power-rail design allows each port to operate within a voltage range of 1.1 to 5.5V. Within the 3.3 to 5.0V range, it supports speeds up to 200Mbps. The operating temperature range is -40°C to +125°C, and it comes in a 14-pin TSSOP package.

The Infineon S25FL064L series is a non-volatile flash memory with a capacity of 8MB, packaged in an SOIC-8 form factor.

Close-up of the toggle switch marked with "JW."

The synchronous buck converter is from MPS, marked with HR, model MP2384. It integrates internal MOSFETs, supports up to 24V input voltage, provides 4A continuous output current, operates at a switching frequency of 700kHz, supports ceramic capacitor filtering, and features comprehensive protection functions. It comes in a QFN-11 package.

Close-up of the 3.3μH alloy inductor.

The clock generator is from SILICON LABS, model Si52202, and comes in a 20-pin QFN package.

Close-up of the 25.000 MHz clock crystal oscillator.

The buck converter chip is from MPS, marked with BAX, model MP2491C. It is a synchronous rectification buck converter with an integrated MOSFET, supports 6A output current, and comes in a QFN-13 package.

Close-up of the 3.3μH alloy inductor.

The load switch is from MPS, model MP5017A. It is designed to protect the output circuitry from input transient surges and to safeguard the input from accidental output short circuits and transient interference. It comes in a QFN-12 package.

The yellow tantalum capacitor is from AVX. 330μF 6.3V.

Close-up of a chip marked with "AWPP."

The M.2 SSD interface utilizes surface-mount soldering and features an M-Key type, making it compatible with NVMe solid-state drives.

The MCU is used to control the fan for cooling.

Close-up of the fan connector socket.

The cooling fan is from Yeehon Technology Co., Ltd., model YB3004H05P, rated at 5V 0.1A, and has obtained CE certification.

Well, those are all components of the UGREEN Thunderbolt 5 80Gbps M.2 NVMe SSD Enclosure.

Summary of ChargerLAB

Here is the component list of the UGREEN Thunderbolt 5 80Gbps M.2 NVMe SSD Enclosure for your convenience.

It features an aluminum alloy casing with excellent heat dissipation capabilities. Combined with the cooling fan, it ensures stable high-speed data transfer. The package includes a Thunderbolt 5 cable. It supports up to 8TB capacity expansion, is compatible with Thunderbolt 4/5 and USB4 standards, and offers a maximum transfer speed of 80Gbps. The CNC-machined aluminum alloy shell is both refined and aesthetically pleasing. The nickel-plated USB-C port resists wear from frequent plugging and unplugging.

After taking it apart, we found that it is designed based on Intel's JHL9480 Thunderbolt 5 solution. The power supply uses MPS MP2384 and MP2491C buck converters. It also includes the Infineon CYPM1322-97BZXI interface controller, S25FL064L series memory, several buffer gate chips from TI, and other components. With top-tier manufacturers’ solutions, the quality is well assured. Its triple-layer safety protection design ensures long-term safe use and guarantees data security.

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