ADATA XPG Spectrix S40G 1 TB M.2 NVMe Review 22

ADATA XPG Spectrix S40G 1 TB M.2 NVMe Review

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ADATA is Taiwan's largest manufacturer of flash storage and DRAM memory for computers. They have been at the forefront of SSD development for many years, bringing us famous SSDs like the SX8200, SX900, and S510.

Today, we have for review the world's first M.2 RGB SSD, the ADATA XPG Spectrix S40G. The drive comes with eight separately adjustable RGB LEDs on the PCB that have its light spread out through a diffuser to create a uniform glow. ADATA's RGB control software lets you select from predefined patterns and adjust the colors to match your computer case's theme.

The drive uses the compact M.2 form factor with a PCI-Express x4 connection to the rest of the system, which ensures optimum performance. Under the hood, the XPG Spectrix S40G uses an 8-channel Realtek RTS5762 controller, which was announced in 2018 and is now seeing some adoption in SSDs. The TLC NAND flash chips on the S40G are made by Intel IMFT, and rounding off the package is 128 MB of DDR3-1600 DRAM to store the flash mapping tables.

The ADATA XPG Spectrix S40G is available in capacities of 256 GB ($58), 512 GB ($80), 1 TB ($160), and 2 TB (unknown). Endurance is rated at 160 TB, 320 TB, 640 TB, and 1,280 TB respectively.

Specifications: ADATA XPG Spectrix S40G 1 TB
Capacity:1024 GB (954 GB usable)
No additional overprovisioning
Controller:Realtek RTS5762
Flash:ADATA rebranded, Intel IMFT 3D TLC
DRAM:Nanya DDR3-1600 128 MB
Endurance:640 TBW
Form Factor:M.2 2280
Interface:PCIe Gen 3 x4, NVMe 1.3
Warranty:5 years

Packaging and Contents

Package Front
Package Back

The Drive

SSD Front
SSD Back

The drive uses the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.

SSD Interface Connector

Like most M.2 NVMe SSDs, the XPG Spectrix S40G connects to the host system over a PCI-Express 3.0 x4 interface.

A unique selling point of the XPG Spectrix S40G is its RGB-lighting capability, which gives the whole drive a really nice glow. The RGB lighting is powered and controlled through the M.2 interface—an additional cable, like on other RGB SSDs, is not necessary.

Colors and patterns can be adjusted in ADATA's software. Unfortunately, these settings don't persist through reboots, so the ADATA software will always have to be installed on your system.

Here, you can get a better view at three of the RGB LEDs. They are soldered on to the PCB, not integrated in the milk-white diffusor.

The diffusor is attached using sticky tape (not glued on), making it fairly easy to remove. It's just a piece of plastic that does a great job at spreading the light of the individual LEDs.

SSD Teardown PCB Front
SSD Teardown PCB Back

On the PCB, you'll find four flash chips, the controller, and a DRAM chip.

SSD Controller

The 8-channel flash controller is made by Realtek, with support for 3D TLC, QLC, and PCI-Express 3.0 x4. It uses eight flash channels.

SSD Flash Chips

The TLC flash chips are fabricated by Intel through their IMFT cooperation with Micron. They have been rebranded by ADATA. For cost optimization, ADATA buys silicon wafers, cuts them up, tests and bins the chips, and puts them inside their own packaging.


One Nanya DDR3-1600 chip provides 128 MB of fast DRAM storage for the controller to store the mapping tables in.

Test Setup

Test System SSD 2019
CPU:Intel Core i7-7700K 4.2 GHz
(Kaby Lake, 8 MB Cache)
Motherboard:Intel Z270
Memory:16 GB DDR4-3200
Dual Channel, 16-16-16-36
Graphics:GeForce GTX 1660
Software:Windows 10 Pro 64-bit
October 2018 Update

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