The first reason is self-evident. You bought a Surface Pro 8 with 128 or 256GB of storage, and you want more. Maybe you want 512GB or even 1TB. The "CH" denotes something unique about these, which is they are often used in the Xbox Series X|S. That's why so many of them are listed as "refurbished" or "pre-owned."

Controlled BOM and firmware – Ensures there are no changes to key components after customer qualification

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Please also note that the usable space for this drive is 867GB (rest of the space WD already allocated to overprovisioning so it is not accessible by the user. This is done to some extent on all SSDs). The process is simple. We're going to wipe and configure the USB drive to be bootable and then copy over the Surface Pro 8 + Windows 11 recovery files to it. Here's how:

Kingston® offers a line of design-in SATA and NVMe solid-state drives created specifically for system designers and builders. The line includes Take your large game library wherever you are with up to 2TB 1 of trusted Western Digital TLC NAND storage.

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For this tutorial, I will re-use the metal sleeve and re-paste the thermal compound. Making a Windows 11 Recovery Drive Get ready for an immersive experience with exclusive gaming features including PCIe ® Gen 4.0 3, Western Digital's nCache™ 4.0 Technology, and Microsoft’s DirectStorage Support. Some people mount the M.2 SSD directly, but it may rattle due to the thinness without the enclosure. Users can add a shim to stop the rattle or put the new SSD into the old enclosure with (or without) adding the thermal paste.

Do not add a lot of thermal paste as it is not strictly needed. Nor do you need expensive thermal paste, as this is not a high-performance CPU. You want a very thin layer when spread out, as too much paste defeats the purpose. System designers and builders rely on consistent storage products. Kingston offers the following benefits with the design-in SSD product line: IDC Whitepaper: “Optimizing Performance with Frequent Server Replacements for Enterprises” commissioned by Dell Technologies and Intel, March 2021. Results are based on interviews with 18 IT practitioners and decision makers at midsize and large enterprises and a web survey of 707 IT practitioners and decision makers at midsize and larger enterprises using Dell Technologies server solutions across 7 industries. See full whitepaper: https://www.delltechnologies.com/resources/en-us/asset/white-papers/products/servers/server-infrastructure-resiliency-enterprise-whitepaper.pdf All other products will be delivered via the fastest available method (excluding bank holidays and weekends) and generally within 3-5 days, depending on customer location. The speculation here is that allocated space is used for Xbox Series X|S storage, and it can't be recovered.Since the replacement SSD does not have an OS, you will need to reinstall Windows 11 after the swap. The easiest way is to load Microsoft's official Surface Pro 8 recovery files to a USB drive, as this gives you all the necessary drivers for Surface Pro 8. Doing so restores Surface Pro 8 to its factory state.