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3.5 inch IDE to SD adapter board with 40-pin connector and 4-pin power socket

Ruth's sister

Ruth's sister 3.5" 40-pin IDE SD adapter internal power cable

SKU CH-BMCC-S4NX5

Converts an SD card into a 3.5" IDE storage device using a 40-pin connector and 4-pin power, supporting up to 128 GB cards

  • Connects SD cards to legacy 3.5" IDE systems
  • Standard 40-pin male IDE interface fits existing cables
  • Large 4-pin power connector draws 5 V from PSU
  • Supports SD cards up to 128 GB capacity
  • Works without drivers as a native IDE storage device

Product Identity

The Ruth's sister 3.5" 40-pin IDE SD adapter is an internal power cable that lets you connect an SD card to a standard ATA IDE interface. It functions as a solid-state IDE storage device without requiring driver installation. The board accepts a standard SD socket and draws 5V power through a large 4Pin connector.

Who It Suits

This adapter suits builders converting legacy systems with 40-pin IDE ports to silent, vibration-free SD storage up to 128GB. It is not for users who need capacities beyond 128GB. It is also not for systems that lack a 5V supply rail or an 80-pin IDE cable for reliable data transfer.

Deciding Specification

The adapter supports SD cards up to 128GB maximum capacity. This single limit determines whether the card can serve as a boot drive or data volume for the target machine. Exceeding this capacity will prevent the device from functioning as described.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 55% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the adapter is operating correctly after connecting the 40-pin IDE and 4-pin power cables?

The board needs only a 5 V supply at 5 V ± 0.25 V with current under 200 mA; once the SD card is seated and the system sees a standard IDE drive without driver installation, it is working as intended.

What ships with the adapter and what must I supply myself?

The package includes the SD-to-IDE adapter board with a 40-pin male IDE connector, an SD socket and a large 4-pin power connector; you must provide an 80-pin IDE cable, a 5 V power source and an SD card up to 128 GB.

Which SD card capacity should I choose for this 3.5-inch 40-pin IDE adapter?

The SD socket supports cards up to 128 GB, so select any standard SD card at or below that limit for use as an IDE storage device.

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