USB 存储(USB Storage)设备早已存在。在大容量存储设备上找到惊人的交易并不难。但是网上列出的或零售商提供的一些产品不是原装的，而是与原始设备外观相似的副本。此类存储设备的问题在于，它们实际上没有写在包装上或Windows 文件资源管理器(Windows File Explorer)显示的那样大的存储量。这种假冒的 USB 存储设备(fake USB storage devices)可以向您保证更高的存储容量，但只能提供其中的一小部分。检测这种假USB的唯一方法(USB)设备是通过将数据复制到设备中直到它充满。这将让您计算设备的实际容量并确定您的设备是否是假的。在这篇文章中，我们介绍了一些可以让您完全做到这一点的免费软件。
检测假存储设备
您(Did)是否遇到过承诺提供更高存储容量但只提供一小部分的假冒USB闪存驱动器或SD 卡？(SD Card)这篇文章中介绍的工具可以让您通过在这些设备上运行存储测试来检查、测试和发现假冒的USB设备。
RMPrepUSB
RPrepUSB(RMPrepUSB)是一款出色的多合一USB工具，可让您在(USB)USB驱动器上执行大量操作。它还允许您创建便携式Windows安装程序并在USB驱动器本身上安装Linux 。RPrepUSB(RMPrepUSB)提供了一个称为“快速尺寸测试(Quick Size Test)”的功能。运行此测试会将一些块写入设备，然后尝试读取它。通过这样做，程序可以计算设备的实际容量并检测任何假冒设备。确保(Make)在运行此测试之前备份您的数据，因为它具有破坏性，并且会从您的USB中删除所有内容(USB)驾驶。此外，该测试不是一个彻底的测试，这使其具有更快的优势。我们还在这篇文章中介绍了一个彻底的测试。快速尺寸测试(Quick Size Test)最多可能需要几分钟才能完成。
同一个开发人员还有另一个名为FakeFlashTest的工具，它更像是(FakeFlashTest)Quick Size Test的扩展版本。如果您正在寻找更多选项，可以下载FakeFlashTest 。
单击此处(here)下载 RPrepUSB。单击此处(here)下载 FakeFlashTest。
H2TESTW
H2testw是一个相当古老的工具，它在USB设备上运行彻底的测试，以验证设备的实际容量。您可以指定USB驱动器，然后选择要测试驱动器的模式。您可以测试整个可用空间，也可以指定您希望扫描的MB数。(MBs)现在点击“写入+验证”按钮开始将数据写入驱动器，然后将其读回以验证容量。如果驱动已经有测试数据，可以直接跳到验证驱动。由于它运行一个彻底的测试，H2testw很慢并且可能需要几个小时。
点击这里(here)下载 H2testw。
CheckFlash
CheckFlash是另一个旨在提供检查和验证USB驱动器等功能的工具。除此之外，它还可以向您显示驱动器映射和其他信息，例如读写速度和测试中经过的总时间。
单击此处(here)下载检查 Flash。
芯片天才
ChipGenius与此列表中的其他工具略有不同。它使您可以查看有关连接到计算机的所有USB设备的一些基本信息。您可以查看制造商信息、序列号和其他详细信息来验证设备是否为假冒。该工具还具有检查假(Fake)容量的选项，但为此，您需要下载其他软件并将其放在与ChipGenius相同的文件夹中。
单击此处(here)下载 ChipGenius。
因此，这些是一些工具，可以让您验证USB驱动器并发现假的。大多数工具也适用于读卡器中加载的 SD 卡。现在，您可以轻松发现假冒设备，并向您购买该设备的零售商或在线平台提出疑虑。
Check or Detect Fake Storage Devices using these free tools
USB Storage devіces have existed sіnce long. And it is not difficυlt to find amazing deals on mass storage devices. But some of the products listed online or available with the retailer are not original but rather a similar looking copy of the original device. The problem with such storage devices is that they do not actually haνe that amount of storage аs written on the packaging or displаyed by Windows File Explorer. Such fake USB storage devices can promise you higher storage capacities but only offer a fraction of it. The only way of detecting such fake USB devices is by copying data into the device until it is full. This would let you calculate the actual capacity of the device and decide whether your device is fake or not. In this post, we covered some freeware that let you exactly do so.
Detect Fake Storage Devices
Did you encounter a fake USB flash drive or SD Card that promised you higher storage capacities but offered only a fraction of it? The tools covered in this post can let you check, test and spot a fake USB device by running storage tests on these devices.
RMPrepUSB
RMPrepUSB is a great all in one USB tool that lets you perform a lot of operations on a USB drive. It also lets you create portable Windows installer and install Linux on the USB drive itself. RMPrepUSB offers a feature called ‘Quick Size Test’. Running this test would write some blocks to the device and then try to read it. By doing so, the program can calculate the actual capacity of the device and detect any counterfeit device. Make sure that you have a backup of your data before running this test as it is destructive in nature and will delete everything from your USB drive. Also, the test is not a thorough one, which gives it an advantage of being faster. We’ve also covered a thorough test in this post. Quick Size Test can take up to a few minutes to complete.
There is another tool from the same developer called FakeFlashTest which is more of an extended version of Quick Size Test. You can download FakeFlashTest if you are looking for more options.
Click here to download RMPrepUSB. Click here to download FakeFlashTest.
H2TESTW
H2testw is rather an old tool that runs a thorough test on a USB device that verifies the actual capacity of the device. You can specify your USB drive and then select the mode in which you want to test the drive. Either you can test the entire available space, or you can specify the number of MBs that you prefer to scan. Now hit the ‘Write+Verify’ button to start writing the data to the drive and then read it back to verify the capacity. If the drive already has test data, you can directly skip to verifying the drive. Since it runs a thorough test, H2testw is slow and can take hours.
Click here to download H2testw.
CheckFlash
CheckFlash is another tool aimed to provide features such as checking and verifying USB drives. Other than that it can show you the drive map and other info such as read and write speed and total time elapsed in the test.
Click here to download Check Flash.
ChipGenius
ChipGenius is a little different from other tools on this list. It lets you view some essential information about all the USB devices connected to your computer. You can view the manufacturer information, serial number and other details to verify if the device is fake or not. The tool also has an option to check Fake capacity, but for that, you need to download additional software and place it in the same folder as ChipGenius.
Click here to download ChipGenius.
So, these were a few tools that would let you verify a USB drive and spot a fake one. Most of the tools will also work with SD cards loaded in a card reader. Now you can easily spot a fake device and raise a concern with the retailer or online platform from where you bought the device.
