The maximum storage capacity for a portable external hard drive for laptops and PCs is currently 6TB. Here are the key details:
## 6TB Portable HDDs
Western Digital recently unveiled the world's highest capacity 2.5" portable hard drives with up to 6TB capacities across their WD My Passport, WD_BLACK P10 Game Drive, and SanDisk Professional G-DRIVE ArmorATD product lines[3]. These drives use a special 2.5" form factor that is slightly thicker (12.5mm) than a standard laptop HDD (7mm).
The 6TB WD My Passport Ultra and WD My Passport Ultra for Mac retail for $199.99, while the standard WD My Passport and WD My Passport for Mac are $179.99[3]. The WD_BLACK P10 Game Drive with 6TB is $184.99 and the SanDisk Professional G-DRIVE ArmorATD is $229.99.
## Largest Portable HDDs
Prior to the 6TB models, the largest portable HDDs available were 5TB drives from Seagate and Western Digital[2]. However, it seems hard drive manufacturers have shifted focus away from portable HDDs with the lack of new 6TB+ models.
As portable SSDs continue to drop in price and reach higher capacities, portable HDDs may become less common. But for now, the 6TB models from Western Digital represent the highest capacity portable external hard drives available for laptops and PCs.
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