Internal hard drives from US brands and US-based sellers
Amazon ranks by what sells fastest, so a internal hard drive from an established brand gets buried under cheap imports no matter how far you scroll. This page lists the US brands and US-based sellers for internal hard drives, so you can start from the ones worth trusting.
We read each seller's registered country from Amazon's own published seller info. We don't claim anything here is manufactured in the US, only that you're buying from a US brand or a US-based seller.
Confirmed US brands and sellers
6 listings where Amazon's own seller info places the seller in the US. Each badge says which.

OWC Mercury Electra 6G 250GB 2.5-inch 7mm SATA 6.0Gb/s SSD

HGST Ultrastar 7K6000 HUS726040ALE610 (0F23005) 4 TB 7200 RPM SATA 6Gb/s 3.5-Inch Internal Hard Drive (Renewed)

Intel S3510 Series 480GB SATA SSD (SSDSC2BB480G601)

Micron 5210 Ion SSD | MTFDDAK7T6QDE | 7.68TB | Qlc | SATA 6GB/S | 2.5-Inch Enterprise Solid State Drive

Sabrent USB 3.0 to SATA Hard Drive Docking Station, 2.5/3.5in (EC-DFLT)

Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ
US brands we went looking for
More names an AI suggested for this category that we haven't confirmed US on yet. Each badge says how far we've checked it.

Corsair Dual SSD Mounting Bracket (3.5β Internal Drive Bay to 2.5", Easy Installation) Black

Seagate BarraCuda 8 TB Internal Hard Drive HDD β 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)
Suggested, not verified. These names came from an AI suggestion, not from our data. We only call a brand US after checking the seller's registered address on its Amazon seller page. Amazon is the seller on these, so its seller page can't tell us who the brand is.