Boot Drives Larger than 2TB require, 64 bit windows, AHCI F6 drivers AND LEGACY CSM GPT UEFI Boot Partition. Non UEFI MBR has a maximum of 2TB.

Intel Rapid Storage Technology (RST) drivers and Support for Disk Drives Beyond 2.2 TeraBytes (TB) 

https://www.seagate.com/support/downloads/beyond-2tb/ 

I'm not looking to make my 3Tb hard drive the boot drive.

The answer is Yes and No.

4TB is available in SSD 7mm   but 4TB hard drives in 2.5 inch format are 15mm thick.  15mm is too thick to fit into the case.  Samsung 850 EVO is
3.94" x 2.75" x 0.27"  aka 7mm thick.

Amazon.com: Samsung 850 EVO 4TB 2.5-Inch SATA III Internal SSD (MZ-75E4T0B/AM): Computers & Accessories 

Amazon.com: Seagate 4TB Barracuda Sata 6GB/s 128MB Cache 2.5-Inch 15mm Internal Bare/OEM Hard Drive (ST4000LM024): Compu…