The Celebrat CB-21M is a high-efficiency USB-A to Micro-USB data and charging cable engineered for daily reliability. Delivering a steady 2.1A max output, this cable supports standard fast charging protocols for Android smartphones, power banks, wireless speakers, and various smart accessories. Built with a focus on structural longevity, it balances high-speed copper core data syncing with an anti-tangle exterior.

Specification

• Brand / Series: Celebrat (CB-21M)
• Connector Interface A: USB Type-A (Standard PC / Wall Charger Port)
• Connector Interface B: Micro-USB (Standard Android / Accessory Port)
• Maximum Current Rating: 2.1A Max
• Core Wire Composition: High-purity multi-strand oxygen-free copper
• Data Transmission Speed: Standard USB 2.0 speed (Approx 480Mbps)
• Outer Jacket Material: High-elasticity, flexible PVC/TPE composite
• Standard Cable Length: Typically 1.0 meter (Approx 3.3 feet)
• Color Options: Typically available in classic Black or White variants

Features

• 2.1A Steady Fast Charging: Wound with thick-gauge internal copper tracks that reduce electrical resistance. This allows it to safely carry up to 2.1 Amperes of current, accelerating charging times over standard baseline 1A cables.
• Simultaneous Data and Power Sync: Engineered with a full 4-wire configuration (Power +/- and Data +/-). This lets you flash firmware, back up photos, or sync files at 480Mbps while your device drinks power from a computer terminal.
• Reinforced Strain Relief Collar: The critical junction where the cable meets the solid plastic plug housing features an elongated, flexible rubber SR boot. This spreads mechanical stress outward, preventing internal wire fractures from repetitive bending cycles.
• Anti-Tangle Exterior Skin: The outer insulation layer uses a highly elastic composite jacket that naturally resists looping, knotting, and twisting when stuffed into pockets or travel bags.

Common Applications

• Legacy Android Smartphones: Fast-charging Micro-USB phones from brands like older Samsung Galaxy, Xiaomi, Oppo, Vivo, and Huawei series.
• Portable Charging Eco-systems: Recharging bulk external power banks, wireless Bluetooth headphones, portable neck fans, and pocket Wi-Fi routers.
• Smart Home Peripherals: Delivering continuous power to tabletop humidifiers, wireless security cameras, digital desk clocks, and desk lamps.
• Hobbyist Electronic Interfaces: Powering and flashing data onto development microcontrollers like NodeMCU ESP8266 boards, Raspberry Pi Zero units, and older Arduino clones utilizing Micro-USB sockets.

Usage & Longevity Guidelines

• Pair with an Appropriate Wall Brick: To achieve the full 2.1A fast charging capacity, make sure your AC wall adapter plug is rated to output at least 5V 2.1A or 5V 2.4A. Plugging this cable into an old 1A iPhone cube will limit the charging speed to that lower threshold, as the cable cannot create power that isn't provided by the source.
• Unplug via the Plastic Shroud: When disconnecting the cable from your phone or wall charger, always grip the solid plastic connector block and pull firmly. Never yank on the flexible cord itself, as this structural pulling force will eventually shear the fine internal copper solder joints away from the metallic plug pins.
• Keep Ports Free of Lint: Because Micro-USB ports are small and friction-fit, pocket lint can collect at the bottom over time, preventing the plug from seating fully. If your cable feels loose or stops charging reliably, gently clean the interior of your device's port with a thin wooden toothpick.
• Avoid Sharp Pin Pinches: Micro-USB plugs use two tiny underlying retention hooks to snap into place. To avoid bending these tabs out of specification, insert and remove the connector straight inline with the port—do not rock it aggressively side-to-side or force it upside down.