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 square 40mm case fan black frame three wires

Fans

Fans EFB0405VHD 4020 40x40x20mm 5V .50A case fan

SKU CH-C6EJ-DKSZA

A 40 × 40 × 20 mm, 5 V, 0.50 A case fan for server chassis cooling

  • 5 V operation draws just 0.50 A for low power use
  • 40 × 40 × 20 mm footprint fits tight server chassis
  • Three-wire connection enables speed monitoring and control
  • Delta build quality delivers reliable airflow in dense enclosures

Delta EFB0405VHD 4020 5V case fan

The Delta EFB0405VHD is a 40 mm square case fan with a 20 mm thickness that operates on a 5 V supply drawing 0.50 A. It uses a three-wire connection for speed monitoring and is supplied in a 50-piece lot for server or workstation chassis cooling.

Check your chassis mounting pattern

Verify that the mounting holes match a 40 mm square pattern and that the chassis provides a 5 V three-pin header for each fan. Ensure the 20 mm depth clears adjacent components and cable routing. Buyers who need a different voltage, a two-wire fan, or a larger frame size should look elsewhere.

Highlights

  • 5 V operation draws just 0.50 A for low power use
  • 40 × 40 × 20 mm footprint fits tight server chassis
  • Three-wire connection enables speed monitoring and control
  • Delta build quality delivers reliable airflow in dense enclosures

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box with the EFB0405VHD 4020 fan?

Each lot contains fifty 40 x 40 x 20 mm fans with three-wire connectors.

How do I choose between the listed versions of the EFB0405VHD?

The listing specifies a single 5 V, 0.50 A variant; no alternative versions are offered.

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.