Further to the report a couple of weeks ago about ProGrade Digital’s introduction of a new 1.3TB CFexpress Gen 4 spec Type B memory card, US-maker OWC announced late last week that they’ve added the same CFA 4.0 (Gen 4) spec to a range of their Atlas Pro and Atlas Ultra cards. The new Atlas Pro 256GB, Atlas Pro 512GB, Atlas Ultra 1TB, and Atlas Ultra 2TB cards now feature PCIe Gen 4 technology to enable (maximum) 3650MB/s read and 3000MB/s write speeds, a claimed 97% increase from the previous generation cards. With the new Gen 4 Atlas Pro 256GB selling at $169.99 and Atlas Pro 512GB  at $199.99 they’re…