Description

MEMO CX21 Phone Cooler (MEMO CX21 High Power 18W Magnetic Phone Cooler) is a 20W TEC semiconductor magnetic phone cooler with a 6000 RPM fan, a magnetic-and-clip dual mounting system and an 82g build. It suits buyers in Bangladesh who want a high-power magnetic phone cooler with strong thermal management for demanding mobile gaming sessions. The MEMO CX21 18W Phone Cooler is designed for mobile gamers in Bangladesh who need reliable thermal management.

MEMO CX21 High Power 18W Magnetic Phone Cooler

The CX21 delivers 20W of TEC semiconductor cooling power through a thermoelectric chip paired with a dual cooling system that combines active semiconductor refrigeration with air cooling from a fan spinning up to 6000 RPM. At 20W (9V/2.2A), the CX21 provides significantly more cooling capacity than the 10-15W models in the MEMO lineup, making it suitable for competitive gaming titles that push phones to their thermal ceiling within minutes.

MEMO CX21 18W Phone Cooler

The magnetic attachment system snaps directly onto MagSafe-compatible iPhones or uses the included back clip for Android devices and non-MagSafe phones. The 91 × 125 × 34mm body at 82g provides a stable grip during gameplay while keeping weight manageable for extended sessions. The CX21 runs in a single high-power speed mode for straightforward operation — plug in via USB-C and the cooler immediately begins delivering maximum cooling output. A single-color purple streaming light effect adds a gaming aesthetic.

Key Features

• 20W TEC semiconductor cooling (9V/2.2A)
• 6000 RPM fan speed
• Dual cooling: TEC + air cooling
• Magnetic + back clip 2-in-1 mounting
• Single-speed high-power mode
• USB-C powered (9V/2A)
• 82g build (91 × 125 × 34mm)
• Purple streaming light effect
• Truly silent operation

Specifications

20W vs 10-15W: When the Extra Power Matters

The difference between 10-15W and 20W cooling represents 33-100% more thermal headroom — the difference between a phone that throttles after 15 minutes of Genshin Impact at maximum settings and one that maintains stable frame rates for 30 minutes or more. For casual gaming at medium settings, a 10W cooler is usually sufficient. For competitive play at maximum graphics and frame rate, the 20W CX21 provides the extra cooling capacity needed to prevent thermal throttling during the most demanding scenarios.

Why Single-Speed High-Power Mode?

Unlike multi-mode coolers that require users to select between speed settings, the CX21 runs at maximum output from the moment it is plugged in. This plug-and-play simplicity means there is no learning curve and no risk of accidentally running the cooler at a lower setting when maximum cooling is needed. For competitive gamers who always want the strongest possible cooling, single-speed operation eliminates one variable from the setup.

CX21 in the MEMO High-Power Lineup

The MEMO high-power cooler lineup includes several tiers. The CX20 offers 10W with three speed modes at just 66g. The CX21 steps up to 20W in a single-speed design at 82g. The CX26 tops the range at 30W with 100-level stepless adjustment and three control modes. For users who want strong 20W cooling without the complexity of multiple modes or digital displays, the CX21 offers a focused, high-performance option.

Tips for Best Use

The 18W TEC semiconductor delivers rapid cooling — allow 20 seconds for full effectiveness before starting intensive gaming. Use a charger that supports 18W+ USB-C output for maximum cooling power. The magnetic attachment is strongest with MagSafe-compatible phones.

MEMO CX21 Phone Cooler Price in Bangladesh

The latest MEMO CX21 High Power 18W Magnetic Phone Cooler price in Bangladesh is ৳1,100. Selling prices and availability can change, so the live WooCommerce fields are the authoritative place to check before ordering. Browse more options in the Phone Cooler category or visit Zesan Enterprise.

MEMO CX21 vs CX08 vs CX26 — Which High-Power MEMO Cooler?

The CX21 pushes 20W TEC cooling at the best value. The CX08 offers up to 20-25°C temperature drop with RGB lighting. The CX26 is MEMO’s flagship with 30W power and 100-level speed control.

Frequently Asked Questions

What are the main features of MEMO CX21 High Power 18W Magnetic Phone Cooler?

It combines 20W TEC semiconductor cooling, a 6000 RPM fan and a magnetic-and-clip dual mounting system in an 82g build.

What is the actual cooling power?

The CX21 delivers 20W of cooling power at 9V/2.2A input, providing strong thermal headroom for demanding gaming sessions.

Does it have multiple speed modes?

No, the CX21 runs in a single high-power mode for maximum cooling from the moment it is plugged in.

Does it work with Android phones?

Yes, the included back clip extends compatibility to any Android device with a flat back.

What is the MEMO CX21 High Power 18W Magnetic Phone Cooler price in Bangladesh?

The current price is ৳1,100 at Zesan Enterprise, updated with live stock availability.

Why Buy From Zesan Enterprise

Zesan Enterprise lists MEMO CX21 High Power 18W Magnetic Phone Cooler specifications alongside current pricing and availability on one Bangladesh-focused page. Review compatibility and package contents before completing your order.