Introduced back in 2004, the WD My Passport was probably WD's most popular portable drive, delivering 180 exabytes of data storage worldwide, according to Western Digital.

"With 20 years, dozens of industrial designs, and approximately 130 million My Passport drives sold, Western Digital is proud to honor this important milestone for one of our most popular product lines, and more importantly, to celebrate the significance of its innovation and how it has positively impacted the lives of consumers around the globe," said Ravi Pendekanti, Senior Vice President of Product Management and Marketing at Western Digital. "We are carrying forward the legacy of reliable performance with the addition of the My Passport Ultra, 20th Emerald Anniversary Edition and look forward to continuing to help people keep backing up the content that matters most in their lives for decades to come."

The new WD My Passport Ultra 20th Emerald Anniversary Edition comes with an anodized metal chassis in emeral finish, capacity of up to 6TB, Acronis True Image software, as well as password protection and 256-bit AES hardware encryption for security.

Featuring a three-year limited warranty, the 2 TB (U.S. MSRP $89.99) and the 6 TB (U.S. MSRP $199.99) My Passport Ultra, 20th Emerald Anniversary Edition drives are available now for purchase at the Western Digital Store and authorized Western Digital retailers, e-tailers, and distributors.