LOT OF 2 HP Elite Book 840 G1 LAPTOP, 14", decommissioned from active IT Vendor, it has been upgraded with 8GB RAM and 256GB NVMe, Windows 10 Pro installed. No functional testing was performed. No charger/accessories. USED laptops may contain varying degrees of cosmetic defects, including but not limited to scratches, scuffs, dings, scrapes, dents, missing screws, stickers, or stains, Check photos.Reason for Professional upgrade?
Conceptually, hard drives work like old-fashioned record players.They contain spinning platters. A part called the actuator moves a tiny arm that floats a minuscule distance above the surface of the disk platters.It is not the raw speed of the SSD, it is how it works.A traditional hard drive is like a record player, when you send data from the HDD to the CPU the computer/Laptop has to find it, it hunts around the platters looking for all the data.With an SSD, there is no waiting; this is because your data is effectively in a spreadsheet.The SSD knows where all your data is instantaneously.No waiting. No spinning beach ball.
Without any moving parts, SSDs operate more quietly, more efficiently, and with fewer parts to break than hard drives that have spinning platters. Read and write speeds for SSDs are much better than hard drives.which is more faster than an HDD.This means your laptop boots up in less than a 20seconds, programs launch and run more quickly, files are transferred faster, and you can do data-intensive work without worrying that your computer will stall or freezeWhat Can I Expect After Replacing MacBook Pro’s Hard Drive with SSD?

• Enjoy a longer life span for your computer. No moving parts, and if you drop your laptop, no parts that can be easily damaged.
• Expect a speedier notebook – SSDs are powered by electricity, which moves at an incredible speed at a fraction of the power of a regular old hard drive.
• Take advantage of more mobility – SSDs are smaller and lighter
• Now, you’ll have less “major malfunctions” – HDDs have to read files in a sequence. As the disc becomes crammed with data files being written across many sections at once this causes fragmentation.
• Files will load at the speed of light. SSDs do a great job of accessing data simultaneously, which means your files are read more expediently.