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It might be slow now, but that can only improve...
The gadget, made from about $10,000 in parts, uses glass bottles of chemicals to build DNA strands, and a tiny sequencing machine from Oxford Nanopore to read them out again. According to a publication on March 21 in the journal Nature Scientific Reports, the team was able to store and retrieve just a single word -- "hello" -- or five bytes of data. What's more, the process took 21 hours, mostly because of the slow chemical reactions involved in writing DNA. While the team considered that a success for their prototype, a commercially useful DNA storage system would have to store data millions of times faster.
Picture by Technology Review