Replacment Roku adapter compatible with Roku Streaming Stick 3500 3500R 3600 3600R 3600X 3800 3800X 3800RW 3800XB, Roku Express 3700X 3700R 3700XB 3930R/Express+ 3710XB 3710RW 3900R 3910XB, Roku Express 4K 3940R/Express 4K+ 3941R, Roku Premiere 3920R 3920XB 3900R/Premiere+ (Only model 3921), Roku Voice Remote Pro(Only fits for Pro). Special Attention：USB-A to Micro-USB Cable NOT fit Roku Streaming Stick+/4k and Roku Ultra. Convenience: Roku charger design allows direct plug-in to power outlets, eliminating the need for additional adapters or extensions,small and lightweight. Safely Device: Output: 5V 2A Input:100-240V 50-60Hz.The charger has passed UL safety certification, charger with output short circuit protection, over current protection,Multi-Protect safety system ensures complete protection for you and your devices. Package Includes: 1x Replacement Roku Adapter Charger, 1x 5FT Micro USB Charging Cable. Compatible

Roku Express 3700X 3700R 3700XB 3930R/Express+ 3710XB 3710RW 3900R 3910XB
Roku Express 4K 3940R/Express 4K+ 3941R
Roku Premiere 3920R 3920XB 3900R/Premiere+ (Only model 3921)
Roku Voice Remote Pro(Only fits for Pro)

【NOTE】: The USB Micro Cable Not Fits Roku Streaming Stick+/4k and Roku Ultra.