The most outstanding highlight of the Corsair EX400U is its outstanding performance. Technology news site Tom's Hardware (New York) rated this as the best USB4 SSD today with high data transfer speed, compactness and compatibility with MagSafe.
In recent years, most external SSDs on the market have been USB 3.2 drives with 10Gbps or 20Gbps bandwidth, the actual speed limit is just over 1,000 - 2,000 MB/s. By using the USB4 interface standard with bandwidth up to 40 Gbps, the EX400U achieves sequential read speeds of up to 4000 MB/s and sequential write speeds of 3600 MB/s.
Copying 4K video projects or software libraries weighing hundreds of GBs is now fast, saving users a significant amount of time to focus on their main work.

Specifications of the EX400U portable hard drive are evaluated through the Crystal Disk Mark application. (Photo: Corsair)
With 3 capacity options of 1TB, 2TB and 4TB, EX400U allows users to comfortably store data such as documents, high-quality videos, games... without worrying about frequent upgrades. This is the ideal capacity for combined use for work and entertainment, especially when high-speed data access is needed anytime, anywhere.
The EX400U can transfer 50GB of data in 26 seconds, nearly twice as fast as its predecessor. (Photo: Corsair)
The EX400U is also exquisitely crafted with dimensions of only 64.3 x 64 x 12 mm. The solid aluminum casing combined with plastic details not only creates a premium look but also acts as an effective heat sink, helping the hard drive maintain stable performance. With a weight of 92 g, this device easily meets the criteria of being compact and lightweight, easy to put in a pocket or carry in a backpack.

The hard drive model has 3 capacity options including: 1TB, 2TB and 4TB with starting price on Corsair's homepage from 139.99 USD (about 3.7 million VND). (Photo: Screenshot)
In terms of durability, the Corsair EX400U is announced by the company with 1500 G shock resistance and good vibration resistance. The operating temperature range is from 0°C to 70°C and storage is from -40°C to +85°C, with a maximum humidity of up to 93%, helping to protect users' data comprehensively.
However, with this hard drive still having plastic parts, as well as no shockproof rubber cushion, users should preserve and limit impacts to maintain durability as well as long-term aesthetics.
The device easily meets the criteria of being compact and lightweight, ensuring flexibility for users who need to move constantly. (Photo: Manh Hung)
The Corsair EX400U also meets the needs of use on many devices. This hard drive operates on a "plug and play" mechanism on many popular operating systems such as Windows, macOS, Linux, iOS and iPadOS without the need to install additional drivers.

Corsair EX400U is compatible with a wide range of devices.
A special feature is that the bottom of the SSD hard drive is integrated with a MagSafe-compatible magnetic ring, allowing it to be firmly attached to the back of an iPhone using a USB-C port (from iOS 13 and above) as an extension accessory. This is extremely convenient for content creators when shooting high-quality videos and need to store them immediately without having to waste time converting.
Corsair EX400U stores ProRes recording files directly on iPhone when connected. (Photo: Manh Hung)
MagSafe-compatible magnetic ring, allowing it to be securely attached to the back of an iPhone using a USB-C port (iOS 13 or later) as an extension accessory. (Photo: Ky Anh)
In addition, the product also comes with a USB-C to USB-C 40Gbps cable. A small drawback is that this cable is 30cm long, which can be cumbersome for mobile device users.
Although priced slightly higher than conventional products, the Corsair EX400U can be considered an ideal choice for those who need a high-end mobile storage solution.
Source: https://vtcnews.vn/o-cung-di-dong-corsair-ex400u-thiet-ke-bo-tui-voi-chuan-usb4-hang-dau-ar963642.html
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