We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small black 40mm square fan with double ball bearing motor

Fans

Fans 12V 0.87A 4028 Double Ball Cooling Fan

SKU CH-F1KR-C95J9

A 40 mm double-ball-bearing case fan running at 12 V and 0.87 A for targeted component cooling

  • 12 V 0.87 A power draw keeps system load low
  • Double ball bearing design extends operating life
  • 4028 form factor fits tight 4 cm mounts
  • Delta TFB0412EHN compatible replacement part

Compact 4028 double-ball fan

The 40 mm by 28 mm frame fits tight chassis and specialised coolers where larger fans cannot mount. It runs on a 12 V supply drawing 0.87 A and uses double-ball bearings for longer service life than sleeve designs. Builders upgrading a Delta TFB0412EHN or similar OEM cooler will find a direct mechanical and electrical match.

12 V 0.87 A headroom and limits

The motor delivers its rated airflow at the specified voltage and current without extra headroom for undervolting. It suits targeted component cooling such as VRM heatsinks or small-form-factor enclosures. It will not move enough air for full-case ventilation or high-TDP CPU coolers, and the fixed two-wire connection prevents PWM speed control.

Highlights

  • 12 V 0.87 A power draw keeps system load low
  • Double ball bearing design extends operating life
  • 4028 form factor fits tight 4 cm mounts
  • Delta TFB0412EHN compatible replacement part

Specifications

No published specifications for this item yet.

Questions about this item

Will the 12 V 0.87 A 4028 fan run from the same header as my older 12 V case fans?

Yes, it uses the same 12 V supply and 0.87 A draw, so any standard motherboard or fan-controller header rated for that current will power it alongside existing fans.

How can I confirm the double-ball bearing is spinning correctly after installation?

Listen for smooth, consistent rotation without grinding; the double-ball design should run quietly at full 12 V speed, and a gentle fingertip touch on the centre hub should feel steady vibration only.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.