15-Pin SATA
Match a 15-pin SATA power connection to the peripheral power lead in your equipment. The BC-DAG023 gallery shows single-branch and dual-branch harnesses with 4-pin peripheral connectors, giving OEM buyers several layouts to specify around the source and load.
- The pictured configurations include 15-pin SATA and 4-pin peripheral power interfaces.
- Single-branch and dual-branch layouts identified by model suffix.
- 18AWG wire configuration; confirm the final wire and insulation specification with the order.
- Passive power wiring only: no SATA data transfer or voltage conversion.
- Confirm connector genders, pin mapping, required rails, and total load.
- Send photos of both mating connectors for a configuration-specific quote.
Choose the Correct SATA Power Connection
15-Pin SATA Power Cable and Peripheral Adapter Harnesses
When a storage assembly has the wrong power connector or an awkward cable route, a matched adapter harness can simplify the build. BespokeCable BC-DAG023 connects 15-pin SATA power interfaces with 4-pin peripheral power interfaces in the pictured single-branch and dual-branch layouts. Specify the two mating connections and the intended load so the supplied wiring matches the equipment.
This is a passive power assembly, not a SATA data cable, voltage converter, or PCIe power solution. The 15-pin interface identifies the SATA power connector; it does not mean every pictured model is a SATA male-to-female extension.
Identify the Pictured Layout
| Photo reference | Visible connector layout | What to specify |
|---|---|---|
| BC-DAG023-A | One SATA power connector and one black 4-pin peripheral connector | Source/load assignment and both mating contact types |
| BC-DAG023-B | Two SATA power branches and one black 4-pin peripheral connector | Branch spacing, source connector and combined load |
| BC-DAG023-C | One SATA power connector and one white 4-pin peripheral connector | Connector genders and wiring required by the existing lead |
| BC-DAG023-D | Two SATA power branches and one white 4-pin peripheral connector | Both branch lengths, mating interfaces, and shared-input load |
The housing colors above identify the gallery photos, not electrical compatibility. Send clear mating-face photos or connector drawings. The quotation should define genders, source and load ends, voltage routing, and branch arrangement rather than relying on color or a short product name.
Assembly Specification
| Item | Specification or ordering requirement |
|---|---|
| Series | BC-DAG023, with photo references A through D |
| Interfaces | 15-pin SATA power and 4-pin peripheral power in the pictured layouts |
| Function | Passive DC power routing; no data transfer or voltage regulation |
| Wire | 18AWG configuration; final conductor, insulation, and component documentation to be confirmed with the order |
| Voltage rails | 5V, 12V and grounds as required by the approved pin map; a conventional 4-pin peripheral connection does not provide a dedicated 3.3V rail |
| Current capacity | Rated per the complete assembly and operating conditions, including the shared input on a branched harness |
| Length | Specify routed length, branch spacing, and tolerances for the installation |
| Drive compatibility | Check the exact SATA drive model, supply rails, startup demand, and pin-3 requirements |
| OEM requirements | Discuss identification labels, packaging, drawing control, and required acceptance documentation |
For SATA-to-SATA power layouts rather than a peripheral adapter, compare the SATA power harness options. The wider SATA cable range includes separate data and combined assemblies.
Start with Photos of Both Mating Connectors
The BC-DAG023-C photo shows a SATA power connector joined to a white 4-pin peripheral connector. It is useful as a layout reference, but the housing color does not tell your assembler which circuit should be connected. Identify the source lead and the device before approving the wiring.
Photograph both mating faces straight on, with the latch or keyed edge visible. Include the existing cable label where available. For a branched version, show the distance between the devices and identify which end receives power. Do not join separate power sources through a passive harness.
We can use these details to discuss connector selection, length, and labeling for your build. A clear drawing is especially valuable when similar-looking adapters are stored together: technicians should be able to identify the correct harness without relying on wire color alone.
Not every pictured version is. The BC-DAG023 gallery shows 15-pin SATA power connections combined with 4-pin peripheral connectors. Select the photo reference and confirm both mating faces and the pin map. For a SATA-to-SATA extension, specify that requirement separately.
No. It routes DC power only. SATA data uses a separate signal connection. A power adapter does not change the drive interface speed and is not a substitute for a 7-pin SATA data cable.
No. The complete assembly rating also depends on terminals, terminations, length, temperature, and installation. For a branched cable, the shared input carries the combined load. Provide operating and startup current for review instead of using a universal per-pin rating.
A conventional 4-pin peripheral connection supplies 5V, 12V, and ground, not a dedicated 3.3V rail. This passive harness does not generate the missing voltage. Confirm the drive requirements and the selected wiring before use.
Color identifies the pictured appearance, not the mating contacts or wiring. Compare the keyed housing, contact gender, and pin map. Send clear photos of the existing connectors if you need help defining the correct assembly.
No. A direct modular PSU cable must match the exact PSU model and approved pinout. The pictured 4-pin peripheral connectors must not be confused with PSU-side modular sockets or motherboard headers.
Check how pin 3 is defined in the exact drive manual and ensure the supply and harness handle it correctly. Power Disable is not present in every drive, and neither providing nor omitting 3.3V is a universal compatibility solution.
Only when the source, common input, conductors, terminals, and each branch are suitable for the combined demand. Include startup current and the required rails for both devices. Additional connectors do not increase available power, and separate power sources must not be joined through the harness.
Send the routed length, branch spacing, connector arrangement, and label content with your quantity. We can review these details for a quotation and sample plan. Custom wiring should be controlled by an agreed drawing rather than inferred from wire colors.
State the evaluation quantity and the documents your project requires. Sample cost, availability, lead time, and supporting documentation are confirmed for the selected assembly. A wire-style designation alone does not certify the entire cable.
Include the BC-DAG023 photo reference, mating-face photos, source and load models, required voltage rails, operating and startup current, lengths, quantity, and delivery market. Add drawing, labeling, packaging, and acceptance requirements where available.
Related Products
Specifying a 15-Pin SATA Power Adapter for an Equipment Build
The most useful starting information is often a pair of connector photos and a drive label. They tell us more than a request for a generic 15-pin cable, because the SATA power connector can appear on extensions, splitters, and peripheral adapters with different wiring roles. BC-DAG023 is presented here as a family of pictured peripheral-adapter harnesses.
Define Which End Supplies Power
Mark the source and load on your sketch. Check whether each existing connector exposes pins or receives contacts, and whether the shell and keying match the intended mate. Product names such as male and female are helpful, but a mating-face drawing removes uncertainty when suppliers describe a housing differently.
Do not treat a 4-pin peripheral connector as a modular PSU socket or a motherboard fan header. A modular PSU replacement requires the exact manufacturer and model pinout. Keep adapter selection separate from that PSU-side compatibility decision, even if two housings appear similar.
Check Rails, Not Just Total Watts
A passive harness routes the voltages supplied to it. It cannot create 3.3V from a 4-pin peripheral lead, correct a wrong pin assignment, or make an undersized supply suitable for a larger load. Confirm each rail required by the connected drive and the available current on that rail.
For a dual-branch layout, include the demand of both loads, especially HDD startup current. The common input and shared conductors must support that demand. Wire gauge is one part of the calculation; contact ratings, terminations, length, temperature, and installation conditions also matter. Do not infer a safe assembly rating from the presence of 15 contacts.
Resolve Drive-Specific Pin Functions
Some drives use pin 3 for Power Disable. An inappropriate signal can prevent a supporting drive from starting, and other drives may have different requirements. Use the exact drive manual to define the harness rather than treating a missing or present 3.3V connection as universally correct.
If a drive fails to start after a cable change, isolate power and check the source, wiring, and drive requirements before making further changes. Do not cut conductors or modify contacts as a general troubleshooting method. For an OEM batch, put the approved pin map and revision on the purchase specification.
Plan the Assembly and Service Route
Measure the route with the drive in its installed position. Leave enough slack for normal servicing without pushing excess wire into fan paths. Support the harness so connector joints do not carry the weight of a hanging branch, and avoid tight bends immediately at the termination.
Shut down and disconnect power before installing or changing the cable. SATA connector geometry alone does not establish hot-swap support. Also remember that this harness supplies power only: use the appropriate SATA data cable for the drive communication path. It is not a replacement for a graphics-card or PCIe power cable.
Turn the Sample into a Repeatable Order
Specify connector mating faces, wire construction, overall and branch lengths, labeling and packaging. Agree on pin-map and continuity checks, dimensional acceptance, and any application-specific load validation. Request documentation for the selected components and finished assembly when your equipment approval process requires it.
Send the BC-DAG023 photo reference, source connector, load model, quantity, and installation sketch. We can discuss a sample configuration and quotation before you commit to a production batch. If the job requires a different power distribution layout, describe that openly rather than adapting an unsuitable pictured version.
Ask about a matched 15-pin SATA power harness with your connector photos and required quantity.
