
My wife's XPS 14 laptop came with a 32GB mSATA drive that was supposed to work with Intel Rapid Storage to cache the spinning 500GB drive, but it was factory and despite Hours of troubleshooting I was never able to get Intel software to speed up a spinning hard drive. Luckily, the price of SSDs has come down enough that it's economical to replace the built-in 32GB drive with this 128GB drive. I junked the 500GB drive and cloned it to a 128GB mSATA, changed the boot order in the BIOS and everything worked like a champ. Windows 8.1 starts now and wakes up in a reasonable time! With a 500GB drive for laptop storage, most people don't need a drive larger than 128GB. You can use symlinks (google it) to put large, rarely used files and folders on a spinning drive, but make them look like they're on an OS SSD.

Kingston A400 240GB SATA SA400S37/240G solid state drive
60 Review

Adata XPG SX8200 Pro 1TB NVMe SSD with 3D NAND, Gen3x4 PCIe M.2 2280, R/W 3500/3000MB/s (ASX8200PNP-1TT-C)
31 Review

Crucial BX500 480GB SATA Internal SSD πΎ with 3D NAND Technology, Up to 540MB/s - CT480BX500SSD1Z
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SAMSUNG 860 EVO 1TB Internal SSD (MZ-76E1T0E), 2.5-Inch SATA III, 1 TB Capacity
29 Review

2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
84 Review

18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review

8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review

2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review