Razer issues a firmware update to combat latency in Raiju Series of controllers | KitGuru
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Razer Raiju controllers receive new firmware to correct latency issues - Geeky Gadgets
Amazon.co.jp: Razer Raiju Ultimate RZ06-02600100-R3A1-A Official Licensed PS4 Controller, Wired and Wireless Compatible, New Firmware Compatible Version : Computers
Amazon.co.jp: Razer Raiju Ultimate RZ06-02600100-R3A1-A Official Licensed PS4 Controller, Wired and Wireless Compatible, New Firmware Compatible Version : Video Games