Product Comparison: Crucial MX300 vs Crucial BX300

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General Specifications
About the Product
Increase the speed, durability, and efficiency of your system for years to come with the Crucial MX300 SSD. Boot up in seconds and fly through the most demanding applications with an SSD that fuses the latest 3D NAND flash technology with the proven success of previous MX-series SSDs.
Fix your slow computer and feel good about using it again! Load apps and save files immediately with the Crucial BX300, which accesses data over 300% faster than a hard drive. That’s how you get the immediate responsiveness you expect.
Key Specs
275 GB
480 GB
Read Speed
530 Mb/s
555 Mb/s
Write Speed
510 Mb/s
510 Mb/s
What customers say about "Key Specs"
Crucial MX300 SSD Drive
  • Can't beat this for it's speed and capacity at this price.
  • I bought a small capacity 275GB drive because I needed it to run software not store data. I use my old drive in an external drive bay for storage.
  • What a huge speed and performance improvement over the old HDD.. Truly amazed.
  • Since install it’s been an immediate and huge improvement with Read and write speeds 4x faster according to speed tests! Been working great and have no complaints. Would recommend!
  • The only reason I gave this two stars, is that most people wouldn't actually see this performance drop. It's really specific to a large writes.
Crucial BX300 480GB 3D NAND Internal SSD
  • The difference in speed is amazing.
  • Easy to install, works perfectly. I'm a gamer and it's worked well for speeding up load times.
  • Crucial SSD drives have comparable speed to Samsung and OWC SSD drives.
Size & Weight
0.28 in.
0.28 in.
2.76 in.
3.95 in.
4.05 in.
2.75 in.
2.9 oz.
2.11 oz.
Form Factor
Memory Chip Type
Encryption Algorithm
AES 256-bit, TCG Opal, IEEE-1667
AES 256-bit, TCG Opal, IEEE-1667
Instantly improve system performance, Entrust your files to a drive that lasts, Keep your system cool
Multistep Data Integrity Algorithm, Thermal Monitoring, SLC Write Acceleration, Active Garbage Collection, Trim Support, Self-Monitoring and Reporting Technology (SMART), Error Correction Code (ECC), Device Sleep extreme low power mode (DEVSLP), Includes activation key for Acronis® True Image™ HD software for easy data migration
What customers say about "Features"
Crucial MX300 SSD Drive
  • This drive is somewhat lighter than the drive it replaced and the form factor is virtually identical.
  • I used it to upgrade an old laptop & the form factor was perfect. It fit the HD compartment exactly as it should.
  • Running it at Sata 3 GB/s & working smoothly so far.
  • These drives utilize Micron 3D-Nand technology and have extremely fast upload/download transfer rates. They are extremely reliable and are priced substantially lower than other manufacturers.
  • Acronis cloning was a bit of a pain. Took too much time to clone but after a 3 hours of troubleshooting I managed to clone my Windows 10 installation successfully.
Crucial BX300 480GB 3D NAND Internal SSD
  • I use external RAIDs for all data and dual external backup drives with all but real time backup with Carbon Copy Cloner.
  • Installation was easy using Crucial's videos.
Warranty / Certifications
Manufacturer Warranty
3 year(s)
3 year(s)
Other Information

Other reviews