The Lab Test found that to clarify the speed difference between USB 3.0 and USB Type-C on this device is difficult because most laptops or PCs only support the first generation USB Type-C Speeds at 5Gb / sec.
SanDisk Extreme 900 Portable SSD is an external solid state drive model introduced for the first time at Computex 2015 with its “cloud” ad that has a transfer speed of up to 9 times faster than a typical external hard drive.
According to a SanDisk representative, the Extreme 900 delivers significant performance improvements for users who need to store or copy multimedia content or edit 4K resolution inherent large capacity.
According to Test Lab, the SanDisk Extreme 900 is about the size of a standard 2.5-inch external hard drive. The device is slightly thicker and heavier than most external SSDs tested at Test Lab. Black outer casing gray combined with a rather luxurious metal rim, the rubber side edges rough surface but can easily slip into the bag. According to the manufacturer’s announcement, the shell has shock resistance very good.
The Extreme 900 features the USB Type-C port on the bottom. SanDisk offers both Type-C USB cables and USB 3.0 to Type-C cables, so it’s good for older PCs with USB 3.0 ports or for those with new laptops. USB Type-C can copy data easily.
Due to the design of both sides of the plug are the same and allow for reversible plug orientation, so basically USB Type-C users will not have to worry about plugging the head back. This is seen as a highlight of the USB Type-C standard over previous generations of USB.
By default, the Sandisk Extreme 900 SSD is provided in the exFAT file system format, so it can work with both Mac and Windows. Testing the speed of the device in this default format, Test Lab found that the results were not much different than when switching to the normal NTFS format.
In theory, the USB Type-C standard has a transfer rate of up to 10Gb / s, twice the 5Gb / s capacity of the currently popular USB 3.0 standard. However, the Asus VivoBook Flip TP301UA laptop is equipped with a USB 3.0 port and a USB Type-C (gene 1), a SanDisk Extreme 900 SSD model with 480GB of data output via a real USB Type-C port. As expected, the USB Type-C standard has lower USB 3.0 speeds.
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The actual test results at the SanDisk Extreme 900 show that the SanDisk Extreme 900’s USB Type-C access speed is a bit more than USB 3.0. Specifically, read and write speeds of the device when measured through USB 3.0 with ATTO software respectively reached 438MB / sec and 440MB / sec. Similar to USB Type-C, the same speed was achieved at 440MB / sec.
On the Web site, SanDisk announced the Extreme 900 read / write speeds at 850MB / sec.
In addition, to assess the stability of the SanDisk Extreme 900’s data retrieval process, Test Lab uses HD Tune Pro software. Of all the read / write operations via USB 3.0 and USB Type-C, the performance curve is not really stable, with many jagged edges, but the difference between the lowest speed and the highest speed is not very large. .
Extreme 900 comes preloaded with SanDisk Secure Access security software, which protects data stored in 128-bit AES encryption. Test through this software, Test Lab can set the protection of data stored in the Extreme 900 with a secure password. However, remember that when you enable protection and if you forget your password, you will permanently lose access to your data.
According to SanDisk, the Extreme 900 SSDs now come in 3 capacities of 480GB, 960GB and up to 1.92TB.
In general, though, USB Type-C technology has not yet been widely adopted by computer makers, smartphones and tablets that are not commonly used on their products. However, the introduction of products such as the SanDisk Extreme 900 SSDs equipped with the Type-C USB port is seen as a welcome breakthrough in ultra-high-speed USB technology.
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