The best replacement for 3tb is 2tb.

The best alternatives to 3tb are rated as following:
★★★★★  2tb
★★★★  2tb time capsule
★★★  1tb fusion drive
★★  4tb
★★  2tb hard drive
★  wd red

Your alternative for 3tb is not listed? Suggest!
Speaking about 3tb, one probably shouldn't forget about mbr.

Other search terms related to 3tb and their ratings are:
★★★★★ mbr
You have in mind a companion for 3tb and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 3tb in all years. Click on graph for more.
3tb
2tb
2tb time capsule