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Square black 40mm case fan with 10mm depth and 12cm 3-pin cable

SXDOOL

SXDOOL U40X12MLZ7-52Bearing 40x40x10mm 12V case fan

SKU CH-6RM8-6BQ17 MPN U40X12MLZ7-52Bearing

A 40x40x10mm 12V case fan with NBRX hydraulic bearing runs at 5000 RPM, moves 3.88 CFM at 16 dBA, and uses a 12 cm 3-pin connector

  • Low 16dBA noise for quiet HTPC builds
  • Hydraulic bearing rated for 5000 RPM reliability
  • 88 CFM airflow cools tight 40x40x10mm spaces
  • 6W draw keeps 12V rail load minimal
  • 12cm 3-pin cable fits standard motherboard headers

Compact 40 mm 12 V case fan

The SXDOOL U40X12MLZ7-52Bearing is a 40x40x10 mm DC fan built around a NBRX hydraulic bearing. It targets builders who need a low-profile 12 V cooler for tight spaces such as north-bridge heatsinks, HTPC enclosures or 3D-printer chassis. The 3-pin connector and 12 cm lead suit standard motherboard headers.

0.6 W input and 3.88 CFM airflow

At 12 V the motor draws 0.05 A for 0.6 W input power and spins at 5000 RPM, delivering 3.88 CFM (0.11 cubic metres per minute) at 16 dBA. This airflow is adequate for small chipset heatsinks or single-board computers but will not satisfy larger CPU coolers or multi-GPU setups.

3-pin voltage control limit

Speed measurement is supported through the third wire, yet the 3-pin interface provides only voltage regulation, not PWM duty-cycle control. Minimum speed and precise fan-curve tuning are therefore constrained by the motherboard's voltage range rather than a 4-pin PWM signal.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 80% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Brand nameSANYO DENKI

Questions about this item

Will the 40x40x10mm size and 3-pin connector let this fan replace the cooler on my older north-bridge heatsink?

The fan measures 40x40x10mm and ships with a 12 cm cable ending in a motherboard-standard 3-pin connector, matching the mounting holes and header used on many legacy north-bridge coolers.

How can I verify the fan is running at its rated 5000 RPM after installation?

The specification lists speed-measurement support, so the third wire on the 3-pin connector reports a tachometer signal that the BIOS or any monitoring utility can read to confirm 5000 RPM operation.

Does the package include mounting screws or only the fan with its 12 cm 3-pin lead?

The supplied data describes the fan unit, its hydraulic bearing, the 12 cm cable and the 3-pin connector; no screws or additional hardware are mentioned.

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