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【Colorful Led Backlight】GameSir T4 Pro wireless controller boasts a vibrant LED backlight that enhances the visual appeal of your gaming experience. The ABXY buttons and right joystick feature stunning colorful LED backlighting that illuminates even in low-light conditions, providing an immersive and enjoyable gaming experience
【Wide Compatibility】GameSir T4Pro Gamepad perfectly compatible with PC Windows 10/8/7, Switch, Steam, Android, Android TV box, iPhone and Supports Apple Arcade, MFi Games, Switch Games.It can be connected via three primary methods, namely Bluetooth, 2.4 GHz receiver, or wired. However, please note that it can only be connected to the Switch or Switch Lite via Bluetooth.
【Programmable Buttons Controller】With GameSir T4 Pro mobile controller, you can create a personalized configuration and dominate other players in your favorite games. The GameSir T4 Pro supports users to easily customize the four back buttons with simple settings, giving you a competitive edge in gameplay.
【Turbo function & 6-Axis Gyroscope】GameSir T4 Pro is equipped with a 6-axis gyro sensor that enables quick response to the controller's inclination, ensuring highly accurate positioning and no input lag time. In addition, you can adjust the intensity of the 5-level motor vibration by pressing Turbo+D-pad's up&down.
【Double Vibration Function & Programmable Buttons】GameSir T4 Pro wireless controller features dual vibration motors that provide 5-level precise vibration, enhancing your gaming experience. Additionally, the controller has four programmable buttons (M1, M2, M3, and M4) that can be edited to perform complex operations, allowing you to become a game master. With the ability to create your own personal configuration, you can easily conquer other players with the GameSir T4 Pro Controller.
【Ergonomic & Non-Slip Design】The contours of the grips on GameSir T4 Pro have been expertly designed to provide a comfortable and secure hold for extended periods of gaming. The non-slip design ensures stable control during gameplay, even if your hands become sweaty.

We are professional battery supplier. We offer more than 10,000 kinds of batteries, We supply high quality batteries for digital cameras, camcorders, PDA, MP3 players, portable DVDs, notebooks & laptops, GPS, Mobile / Cellular phones, and other quality products, in almost every field.
- Compatible Brand:
Machenike

- Compatible Models:

F57-D3
F57-D1T
F57-D2
F57-D
F57-D1
F57-D4
N550RC
F57-D5R
F57

- Part Number:

6-87-N550S-4E43
6-87-N550S-4E42
6-87-N550S-4E4
6-87-N550S-4E41
N550BAT-3

Tips Before Purchase
Please confirm the compatible models and battery part number carefully before you purchase it.
Any question, please send email to us. we will give you professional suggestions.
Battery Type: Li-Polymer, Voltage: 11.4V, Capacity: 4000mAh, WH: 45.6Wh
Compatible Models: F57-D3 F57-D1T F57-D2 F57-D F57-D1 F57-D4 N550RC F57-D5R F57
P/N: 6-87-N550S-4E43 6-87-N550S-4E42 6-87-N550S-4E4 6-87-N550S-4E41 N550BAT-3
Certificated with UN38.3, MSDS, ISO9001, RoHS, CE
Full Refund or a Free Replacement without Reason for 60 Days.

Take on all comers with ROG Strix Scope RX, the first mechanical RGB gaming keyboard featuring exclusive ROG RX Red Optical Mechanical Switches. These switches provide a 100-million-keystroke lifespan and offer consistent linear keystrokes with immediate response. In addition, each switch has a central RGB LED to give every key all-round lighting. Strix Scope RX also offers IP57 water and dust resistance, an alloy top cover, and USB 2.0 passthrough. Like all Strix Scope series gaming keyboards, it has a wider Ctrl key and a Stealth key for FPS gamers. Go confidently into battle with ROG Strix Scope RX. The ROG RX Red Optical Mechanical Switches are the first to be developed by ROG. Extensive research, testing and fine-tuning have resulted in switches with a 1.5mm actuation point for lightning-fast inputs. An initial force of 40g prevents accidental keystrokes, and goes all the way up to 55g for perfect rebound feedback. ROG RX Red switches provide a smooth and linear feel to give you near instantaneous response the moment you strike the key. ROG Strix Scope RX offers industry-leading IP57 dust and water resistance, ensuring it’s well-protected from spills and dust. It also has a durable aluminum alloy top plate that provides structural rigidity to give you long-lasting and reliable performance.
PLAY AT THE SPEED OF LIGHT - Take on all comers with ROG Strix Scope RX, the RGB gaming mechanical keyboard featuring exclusive ROG RX Red Optical Mechanical Switches. These switches provide a 100-million-keystroke lifespan and offer consistent linear keystrokes with immediate response. In addition, each switch has a central RGB LED to give every key all-round lighting. Strix Scope RX also offers IP57 waterproof and dust resistance, an alloy top cover, and USB 2.0 passthrough. Like all Strix Scope series gaming keyboards, it has a wider Ctrl key and a Stealth key for FPS gamers. Go confidently into battle with ROG Strix Scope RX.
ABOUT ROG RX RED SWITCH - Linear and Swift, ROG RX Red Optical Mechanical Switches are the first to be developed by ROG. Extensive research, testing and fine-tuning have resulted in switches with a 1.5mm actuation point for lightning-fast inputs. An initial force of 40g prevents accidental keystrokes, and goes all the way up to 55g for perfect rebound feedback. ROG RX Red switches provide a smooth and linear feel to give you near instantaneous response the moment you strike the key.
BUILT TO LAST - ROG Strix Scope RX gaming keyboard offers industry-leading IP57 waterproof and dust resistance, ensuring it’s well-protected from spills and dust. It also has a durable aluminum alloy top plate that provides structural rigidity to give you long-lasting and reliable performance.
INSTANT PRIVACY - Marked with an iconic cloaked-figure keycap, the Stealth key instantly hides all apps and mutes all audio, assuring instant privacy, whenever you need it. A simple tap engages it, and another tap brings apps and audio back up, as they were.
READY FOR WORK OR PLAY - The Quick-Toggle Switch prepares ROG Strix Scope RX mechanical keyboard for gaming or the daily grind, toggling the top row between Media or Function (Fn) key input – so it's easy to switch modes for work or play. The keyboard is topped with an aluminum faceplate for everyday resilience, and finished with a striking slash aesthetic for a little touch of style.
AURA SYNC - Vibrant per-key backlighting illuminates Strix Scope from top to bottom and edge to edge. Powered by Aura Sync, the entire color spectrum and a range of dynamic lighting effects are at your command for you to create a keyboard that's uniquely yours. The lighting is easily synced with the extensive Aura ecosystem to create a gaming environment that really shines.

Product description The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. EasySMX X20 PC Controller Merchant Video 1 Switchable Triggers 2 Hall Sticks D-able 3 Full Mechanical Keys 4 1000Hz Polling Rate 1 Motion Function 2 RGB Lighting 3 Adjustable Vibration 4 1000mAh Battery 1 Removable Thumsticks 2 4 Additional Buttons 3 Prevent Slipping Design

Q1: Why does the left stick click (L3) sometimes stop responding or cancel unexpectedly?

A1: Older firmware (V1.18 or below) on the X20 wireless PC controller may misread fast or long L3 clicks. This is not a hardware defect. Update to V1.21+ to resolve the issue.

Q2: Is firmware upgrade difficult for this gaming controller?

A2: No. Just connect the PC gamepad via USB, open the tool, click “Detect Device” > “Upgrade.” The process takes ~1 minute. Easy instructions and video guides are available.

Q3: What systems is this X20 pc game controller compatible with?

A3: This Bluetooth controller works with Windows 10/11, Android, Steam, and Nintendo Switch. Not compatible with iOS, macOS, or Xbox/PlayStation consoles.

Q4: What if the thumbstick cap of my wireless PC controller falls off?

A4: The thumbstick caps are removable by design. Just press them back. If damaged, you can con tact EasySMX for a free replacement or order individual thumbstick caps separately.

Q5: Are the back buttons on this PC gamepad hard to set up?

A5: Not at all. To program M1: Hold C + M1 for 5s to enter programming mode. Press the button you want to assign (e.g., A or AB). Then press C + M1 again to save and exit. Programming is now complete.

🎮Multi-Platform Support – Works as a Bluetooth/USB controller for PC, Switch, Steam, and Android devices. ❌ Not compatible with Xbox, Luna, or GeForce Now.
🎮Dual-Mode Triggers – Switch instantly between smooth linear Hall triggers and ultra-fast mouse-click triggers, giving you the precision of a 2-stage system for both racing and FPS games.
🎮Swappable Hall Joysticks – Magnetic, drift-free thumbsticks can be swapped out in different heights and angles, letting you customize comfort, accuracy, and durability to fit your playstyle.
🎮1000Hz Polling Rate – Enjoy near-zero input lag with a true 1000Hz polling rate over both USB wired and 2.4G wireless connections, ensuring lightning-fast response for competitive gaming.
🎮4 Back Paddles – Assign critical commands to four customizable rear paddles for faster reaction times and pro-level control in demanding gaming scenarios.
🎮6-Axis Motion Control – Built-in gyro delivers precise motion input on Switch, PC, and Android. Note: This feature is OFF by default and must be enabled in the settings before use.
🎮Dynamic RGB Backlit: Enhance your gaming sessions with fully customizable RGB lighting that lets you sync your controller's ambiance with your style, mood, or the game's environment for a personalized gaming experience.
💔【Just a reminder】💔Not Not Not Compatible with Xbox, Luna and Nvidia GeForce Now