Groundbreaking "5D memory crystal" storage could last until the end of the universe - but will it be able to hold all of your pet photos?
5D memory crystal keeps data intact for 13.8 billion years
· TechRadarNews By Efosa Udinmwen published 16 December 2025
(Image credit: SPhotonix) Share Share by:
Share this article 0 Join the conversation Follow us Add us as a preferred source on Google
- SPhotonix’s 5D memory crystal on a five-inch glass disc can reliably store up to 360TB
- Data in 5D crystals remains stable at 190o Celsius indefinitely
- Current prototypes read data at roughly 30 MBps and write at 4 MBps
SPhotonix has launched its new 5D memory crystal, a storage medium designed for extreme longevity rather than everyday convenience.
The technology relies on fused silica glass etched with femtosecond lasers, encoding information in microscopic structures that alter light polarization.
These structures store data using three spatial coordinates alongside orientation and intensity, forming a 5D encoding method.
5D data encoding
The company claims stability even under high temperatures, with an estimated lifespan matching the age of the universe.
Such claims rest on material science rather than real-world operational history, which remains limited.
According to SPhotonix, a single 5-inch glass disc can store up to 360 TB.
SPhotonix describes its 5D memory crystal as a fused silica storage medium intended for extremely long retention periods.
Are you a pro? Subscribe to our newsletter
Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed!
Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors