Seagate Barracuda 300GB
Other HDD
Part number ST3300820AS · Barracuda series · SATA 3Gb/s (SATA II). If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the Seagate Barracuda series →
Check ST3300820AS price on Amazon partner link
No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.
Compatibility verdict
It appears on the official compatibility lists of 2 machines and series — 2 QNAP. Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.
Compatible NAS models
Same-capacity alternatives
Other drives listed at 300 GB capacity, ranked by how many machines list them:
Quick answers
Is the ST3300820AS officially compatible with my NAS?
It appears on the official compatibility lists of 2 machines and series — 2 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the ST3300820AS a good NAS drive?
Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.
Can I use the ST3300820AS for a 3-2-1 cold backup copy?
No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.
What are alternatives to the ST3300820AS?
At the same capacity, the most widely listed alternatives are Western Digital WD3000HLHX (156 machines), Intel SSDSC2BB300G4 (119 machines), Intel SSDSA2BZ300G3 (92 machines). The full ranked list is below.