0 85 Inch Hard Drive

The phrase "0.85 inch hard drive" refers to a specific, record-breaking piece of storage history: the world's smallest mechanical hard disk drive, produced by Toshiba in 2004. While revolutionary at the time, this form factor is now entirely obsolete for new product development, having been replaced by NAND flash memory.

Product Overview: The Toshiba 0.85-inch HDD

* Historical Significance: Launched in 2004, it entered the Guinness World Records as the smallest hard drive ever made. It was roughly the size of a postage stamp StoragenewsletterSemicon-Storage.

* Technical Specs: It offered 2GB to 4GB of capacity, spun at 3,600 RPM, and used a specialized SDIO-over-ATA interface StoragenewsletterWillwhang.

* Notable Use Case: Its most famous application was in the Nokia N91 mobile phone, which was marketed as a high-capacity music jukebox Reddit.

Market Trends & Insights (2004–2026)

* Discontinuation (2009): The product was discontinued just five years after launch due to the rapid cost decline and performance explosion of NAND flash memory Computerhistory. Flash proved more durable (no moving parts), faster, and more energy-efficient for mobile devices.

* Current "Retro" Interest: In 2026, there is a niche surge in interest from retro-tech enthusiasts and data recovery specialists who reverse-engineer these drives to access data from legacy devices Tomshardware.

* Broader HDD Market (2026): While micro-HDDs are dead, the HDD market remains a multi-billion dollar industry by focusing on Enterprise "Nearline" storage (20TB–30TB+ drives) for data centers and AI infrastructure, where cost-per-terabyte still beats SSDs for massive data lakes YahooYoutube.

Sourcing Status

Direct sourcing for new 0.85-inch drives is no longer possible through standard B2B channels. Current listings primarily feature 2.5-inch or 3.5-inch drives or Small Form Factor (SFF) blank kits for modern servers AlibabaAlibaba. Collectors and repairers typically source these drives from used/refurbished marketplaces or by salvaging them from vintage Nokia N91 units.