From Stasson.org https://stason.org/TULARC/pc/hard-drives-hdd/quantum/MAVERICK-MV-270-AT-270MB-3-5-SL-ATA2-FAST.html
"The Quantum drives support both the Extended CHS (Cylinder Head
Sector) and LBA (Logical Block Address) addressing methods in
overcoming the 528 MB DOS capacity barrier."