SATA Power Cable to Motherboard
Connect a dedicated motherboard drive-power output to a SATA drive with a harness matched to your board and enclosure. BC-DAG025 offers six starting layouts, including compact four-position housings, an angled SATA socket and a dual-drive version.
- 15-pin SATA female drive-power connector.
- Single-output and two-output configurations.
- Several board-side housing and pitch options.
- Straight or 90-degree SATA cable exits.
- Pin assignment and length reviewed for the actual board.
- OEM samples, identification and bulk-order review.
Build the Harness Around Your Board
SATA Power Cable to Motherboard for Board-Specific Drive Connections
A short, correctly routed drive-power harness can make a compact computer much easier to assemble and service. BespokeCable BC-DAG025 connects a suitable dedicated board power output to a 15-pin SATA drive-power socket, with six photographed layouts to help you start the selection.
The board-side connector is the critical detail. Two white four-position housings may look similar while using different contacts, keying or pin assignments. Send the motherboard model and power-header drawing so we can match the cable to the equipment, rather than treating a matching plug shape as proof of compatibility.
Specifications for Project Review
| Item | BC-DAG025 range |
|---|---|
| Drive interface | 15-pin SATA female power socket |
| Board-side choices | Four-position housings listed as PH2.0, 2.54 mm, small 4-pin and VH3.96; confirm exact series and mating part |
| Outputs | One on A/B/C/D/E; two on F |
| SATA orientation | Straight on A/C/D/E/F; angled on B |
| Electrical function | Passive connection; no voltage regulation or SATA data transfer |
| Supply rails and pinout | Defined by the board output, drive requirements and approved wiring drawing |
| Wire and terminals | Select together for the specified contact system and load; no single wire gauge is assumed across every model |
| Length and branching | Quote against the installed route and, for F, both output positions |
| Current and temperature rating | Confirm for the complete approved assembly and its operating environment |
Choose a Starting Layout
| Model | Listed board-side format | Drive-side arrangement |
|---|---|---|
| BC-DAG025-A | PH2.0-style, four positions | One straight SATA socket |
| BC-DAG025-C | Listed as 2.54 mm, four positions | One straight SATA socket |
| BC-DAG025-B | Listed as 2.54 mm, four positions | One 90-degree SATA socket |
| BC-DAG025-D | Small four-position housing | One straight SATA socket |
| BC-DAG025-E | VH3.96-style, four positions | One straight SATA socket |
| BC-DAG025-F | VH3.96-style, four positions | Two straight SATA sockets |
These catalog labels identify starting configurations, not universal motherboard standards. In particular, the catalog term “PH2.54” should not be treated as a verified manufacturer series. Confirm the housing, terminal and pitch with a drawing or full part number before ordering.
Use a Dedicated Drive-Power Output
An ordinary CPU or system-fan header is not a substitute for a SATA drive-power output. A fan header can include speed-sense and PWM-control pins; four positions do not mean four interchangeable power connections. The board documentation must identify the intended drive-power header and its available rails and load limit.
This cable does not power the motherboard itself and does not replace the main ATX or CPU power cable. It also does not carry data. Select a separate SATA data cable where required. If your source is already a standard SATA power lead, the SATA power splitter range may be a more appropriate starting point.
For a quotation, share the board model, header pinout, drive model, cable route and quantity. A clear connector photo is welcome when you do not yet have the housing part number.
Six Board-to-Drive Harness Layouts
Use the photos and model suffixes to shortlist the mechanical layout. Final selection also needs the exact board header, mating housing and pin assignment.
P/N: BC-DAG025-A
A compact four-position board-side housing connects to one straight SATA power socket. Use this PH2.0-style layout as a starting point for a matching dedicated drive-power header. Confirm the mating series, contact size and wiring before specifying the lead for a small enclosure.
P/N: BC-DAG025-C
One straight SATA socket is paired with the four-position housing cataloged as 2.54 mm. This layout leaves the drive-side cable running directly away from the socket. Match the board connector drawing and cable route; pitch alone does not establish electrical or mechanical compatibility.
P/N: BC-DAG025-B
An angled SATA socket helps turn the lead alongside the drive when rear clearance is limited. Compare its exit direction with the installed drive and nearby data cable. The board-side housing and pin map still need to match the exact motherboard output.
P/N: BC-DAG025-D
This variant uses a different small four-position housing with one straight SATA socket. Select it by its mating shape and connector drawing, not the phrase small 4-pin. Send a close-up of the board header or existing cable to make the comparison more useful.
P/N: BC-DAG025-E
A VH3.96-style four-position housing leads to one straight SATA power socket. Consider this layout where the board provides the matching dedicated power output. Housing size does not establish the assembly rating; confirm the terminals, wiring and allowable board load for your drive.
P/N: BC-DAG025-F
Two SATA female sockets branch from one VH3.96-style board connection. This layout can simplify routing to a pair of drives when the header and harness are rated for their combined demand. Specify both branch lengths and include simultaneous startup in the electrical review.
Turn the Cable Without Crowding the Drive
The BC-DAG025-B angled SATA socket changes the cable exit at the drive, helping a short lead follow the enclosure rather than project straight toward a cover. It is a useful layout to consider when the power socket sits close to a wall or carrier.
Check the assembly from the side with the drive installed. The bend must leave the neighboring data connection accessible, and the board-side housing must not be pulled sideways as the cover closes. Include room for disconnection during service, not just enough space to insert the cable once.
A photo of that installed route, together with the required pin map, lets us review the mechanical layout and electrical connection as one harness.
A clear photograph can help shortlist the housing, but it does not prove pitch or pin assignment. Include the mating face, latch and side view with a scale, plus the board model and connector designation. We may still need a drawing or sample before approving the mating part.
Use the connector manufacturer drawing or full part number whenever available. The difference is too small to judge reliably from a product photograph, especially across only four positions. Do not force a near-fitting housing onto the header; confirm the series, keying and mating dimensions together.
No. Keying can control the insertion orientation, but it does not make the voltage assignment universal. Two cables using the same housing can be wired differently. The approved pin map must define both connector views and every connected position before the cable is used.
No. A passive harness does not boost or convert voltage. A drive requiring a rail that the board cannot supply needs a suitable power arrangement designed for that equipment. Tell us the board output and drive requirements before choosing the cable, rather than adding an unverified adapter.
Use numbered connector positions and named electrical rails instead. Colors are useful for identification, but color conventions and replacement harnesses can vary. The drawing should state where every wire connects, including ground and any intentionally unused positions, so assembly and inspection use the same reference.
Both sourcing routes can be reviewed. If an original branded housing and terminal are required, provide their complete part numbers and state that substitutions need approval. A compatible alternative should be identified separately; a family nickname or similar appearance is not proof of original-manufacturer sourcing.
Not if it falls outside the terminal and insulation range. Wire size, crimp contact and housing must form a suitable assembly. Send the load, cable length and exact connector requirement so the construction can be reviewed as a whole instead of specifying a gauge independently.
Yes, ask for availability against the selected model or proposed custom drawing. Include your quantity and what needs to be checked in the equipment. Sample charges, minimum production quantity and timing depend on the final configuration and sourcing requirements and are confirmed in the quotation.
Yes. Send its part markings, length and clear photographs of both ends, along with the exact board and drive models. A physical sample can help resolve uncertain dimensions. The replacement should still be documented and checked; matching the outside shape alone does not confirm its internal wiring.
Yes. Confirm that the header part, pin assignment, output rails and load limit remain unchanged. A board model name may stay similar while the connector or power circuit changes. Retain the approved board revision in the harness documentation and review any proposed replacement before reuse.
Specify the drawing, pin-map inspection, traceability and destination-market documents your project needs. Any additional load or environmental testing should be agreed for the actual assembly. This page does not assign blanket certification or an unverified current rating to every connector option.
Related Products
Specify a Board-to-SATA Power Harness Without Guessing the Pinout
Board-specific wiring is easiest to buy when the mechanical connector and electrical assignment are documented together. A cable that fits the header can still place the wrong voltage on a drive pin. For an OEM build, a short connection drawing is more useful than a broad claim that the cable works with Mini-ITX or industrial motherboards.
Identify the header by function and revision
Start with the exact motherboard model and revision. Find the connector designation in its manual or schematic and establish that it is a power output intended for a storage drive. Record the voltage and ground assignment of each position, the permitted load and any restrictions on attached devices.
Do not substitute a nearby fan, RGB, USB or auxiliary header because it has four contacts. Likewise, a board from the same manufacturer may use a different arrangement. If the documentation is incomplete, have the equipment designer verify the interface before any cable is energized.
Define the viewing direction of the pin map
A drawing should state whether the connector is viewed from the mating face or the wire-entry side. Show the latch or key, mark pin 1 and number every position. A mirrored photograph without a reference can turn a correct-looking list into the wrong assembly.
Map those numbered positions to the required SATA power contacts. Identify any intentionally unconnected contacts rather than leaving them ambiguous. The cable is passive: it routes available rails and cannot create a missing supply voltage. Requirements at the drive end must therefore agree with what the board actually provides.
Select the housing and terminal as a pair
Nominal pitch is only the spacing between contacts. The housing also has a particular keying shape, mating depth and terminal system. Similar catalog names are not enough to establish interchangeability. Specify a full manufacturer part number when the design requires a particular branded connector, or define the approved compatible alternative separately.
Wire size must suit both the electrical load and the terminal crimp range. It is not sound practice to assign one thick wire gauge to every small connector family. Review the complete construction, including insulation size, termination and strain relief, when agreeing the harness specification.
Check the route with both connectors seated
Measure the route from the board header to the installed drive, allowing for the housing bodies and connector exits. Keep the lead away from fan blades, sharp edges and cover screws. A short harness should not pull on the board connector when the drive carrier is moved into place.
For the dual-output F layout, show both drive positions and the branch point. Review the combined operating and startup load against the board output as well as the harness. A second SATA socket does not add power capacity to the original header.
Approve one reference before repeating it
Agree the continuity and pin-assignment checks required for the project, along with any load evaluation in the target equipment. Keep the approved sample, drawing revision and board revision together. If the motherboard or drive changes later, review the interface again rather than silently reusing the previous cable.
To begin, send the board manual page, clear header photos, drive model, desired route and quantity. If you have a working original cable, include its markings and both mating faces. Request a board-specific harness quotation and we can turn those details into a configuration that is easier to order and repeat.
