SATA 3 Cable
Choose the BC-DAG003 SATA 3 data cable for the route between your host port and SATA drive. Six pictured models combine blue or silver cable finishes with straight, down-angle, or side-exit connectors.
- 7-pin SATA female data connectors with metal latches
- Options for SATA 6Gbps system requirements
- Blue: BS straight, BD down-angle, BR side-exit
- Silver: SS straight, SD down-angle, SR side-exit
- Specify length, connector direction, and host/drive details for a quote
- Drive power is supplied through a separate power connection
Interface, Length and Model Selection
SATA 3 Cable with Straight and Angled Locking Connectors
A cable that reaches the drive is only part of a good installation. The connector must also clear the drive tray, adjacent ports, and chassis wall. The BC-DAG003 family gives equipment builders six layouts to compare, with visible metal latches and two cable finishes for identifying routes inside a system.
These are internal SATA data cables with 7-pin female connectors. Choose them for a compatible SATA host-to-drive path, and provide drive power separately. Select by the required link rate and installation geometry, rather than assuming that a cable color or “SATA 3” label determines the speed of the drive.
Interface and Ordering Reference
| Item | What to confirm |
|---|---|
| Connection | 7-pin SATA female to 7-pin SATA female, data only. |
| Host and drive | A compatible SATA controller port and SATA HDD, SSD, or optical-drive data interface. |
| Link requirement | Specify SATA 6Gbps or the required lower-generation link rate. Validate the quoted configuration with the intended host and drive. |
| Retention | Metal latch at the pictured connectors. Confirm the mating port accepts a latching connector and that the release remains accessible. |
| Length | Choose the shortest practical internal route with service room. Standard internal SATA cabling is specified up to 1m; longer requests need a separate engineering review. |
| Finish and construction | Blue and silver versions are pictured. Confirm cable construction, conductor size, shielding, and materials in the quoted specification. |
| Project requirements | Provide connector orientation, measurement points, quantity, and any documentation or inspection requirements. |
Model Selection
Blue models: BC-DAG003-BS uses straight connectors; BC-DAG003-BD uses the pictured down-angle layout; BC-DAG003-BR has a side-exit connector. Silver models: BC-DAG003-SS, SD, and SR provide the corresponding straight, down-angle, and side-exit choices.
Angle names depend on the port mounting and viewing direction. Use the product photo and L-shaped key as the reference, then mark the required cable exit on a photo of your equipment. For other connector arrangements, see our right-angle SATA cable options. If you need a combined drive connection with power, compare the SATA data and power harness.
Compare Six BC-DAG003 Cable Layouts
Compare blue and silver finishes with straight, down-angle, and side-exit connectors. Confirm the pictured key orientation against your host port and drive before selecting a model.

P/N: BC-DAG003-BS
Blue cable with straight SATA data connectors and visible metal latches. Consider this layout when the host and drive have room for a straight cable exit. Specify the route length and leave access to release each latch during installation or service.

P/N: BC-DAG003-BD
The blue BD model combines a straight end with the pictured down-angle connector. Compare its keyed face with your installed SATA port before ordering. Use it when the cable must turn near a port without forcing a tight bend in the cable itself.

P/N: BC-DAG003-BR
The blue BR model uses a side-exit angled connector paired with a straight connector. Check which side of the port has free space and confirm neighboring connector clearance. A marked equipment photo helps confirm whether this bend sends the cable in the direction your assembly needs.

P/N: BC-DAG003-SS
Silver cable with straight SATA data connectors and metal latches. Choose this finish for your preferred cable identification scheme, then confirm the same mechanical and electrical requirements as any other model. Cable color alone does not indicate a higher link rate or faster drive performance.

P/N: BC-DAG003-SD
The silver SD model offers the pictured down-angle connector arrangement with a straight opposite end. Match the port key, mounting orientation and required exit direction to the photo. Confirm enough space for the molded connector body and for releasing the latch after the drive is installed.

P/N: BC-DAG003-SR
The silver SR model pairs a straight connector with a side-exit angled end. Review the route around adjacent ports and chassis edges before choosing it. Include the exact length and connector orientation in your inquiry so the proposed cable can be checked against the intended equipment.
Leave Room to Seat and Release the Latch
The latch engages a compatible mating port to help retain the connection. Check that the port has the matching retention feature and that the connector can seat fully without the housing hitting an adjacent part.
Keep the release tab reachable after the drive is mounted. During removal, operate the release and withdraw the connector by its housing rather than pulling on the cable. Support the route so movement elsewhere in the chassis does not load the port.
The close-up illustrates the latch construction. Any required pull force, vibration, or service-cycle performance should be specified and verified for the proposed cable and mating assembly.

It refers to a SATA 6Gbps system requirement. Specify the required link rate for the quoted configuration and evaluate it in the intended host-to-drive path. Actual file-transfer speed depends on the drive, controller, and complete system.
A matching 7-pin SATA data connection can be used for older SATA interfaces. The host and drive determine the negotiated link rate. Check the connector and equipment documentation; a newer cable does not upgrade an older device’s capabilities.
Use the actual port key and final mounting position as references. Compare the BD/SD and BR/SR photos with the desired cable exit. Include nearby ports and chassis walls in the clearance check, then confirm the selected model in the quote.
It’s compatible if the device has a compatible SATA 7-pin data interface. The drive needs its own suitable power connection. Do not assume compatibility with NVMe, a SAS drive, or a proprietary combined connector solely from a storage-device description.
The passive data cable does not require a software driver. The operating system must still support the SATA controller and the connected device, and the controller may have its own driver or configuration requirements.
Color alone does not establish speed. Choose a finish for identification or installation preferences, then confirm the electrical configuration and required link rate. BS/BD/BR are blue; SS/SD/SR are silver.
Send the length and complete system requirements for engineering review. Standard internal SATA data cabling is specified up to 1m. Longer requests should not be assumed to deliver the same link performance without application-specific evaluation.
No. The 7-pin cable carries SATA data signals and ground connections. Supply drive power through a separate, suitable power interface. Review the drive’s voltage and current requirements when selecting that power connection.
Specify the documents and requirements needed for the purchase. Ask which materials or configurations the available documents cover, and agree on the evidence in the quotation. Generic page wording or product photos do not establish third-party certification.
Send the selected model, cable length and measurement points, host and drive details, connector photos, and quantity. Add material, labeling, packaging, and inspection requirements so feasibility and quotation terms can be reviewed together.
Check connector seating, latch release access, final cable routing, device detection, and representative transfers in the intended equipment. Include any project-specific performance or environmental acceptance criteria before approving production.
Related Products
How to Choose a SATA 3 Cable for an Equipment Build
On a crowded motherboard or compact drive tray, connector geometry can matter as much as cable length. A good cable choice starts with the two ports and the space between them, then considers the required SATA link and access for service.
Separate Link Rate From Drive Throughput
SATA 3.0 uses a nominal 6Gbps link rate. That number describes the interface signaling rate, not the file-copy speed of every connected drive. A hard disk, SATA SSD, optical drive, and host controller can each limit the result. Replacing a working cable does not automatically make a slower device faster.
For a SATA 6Gbps project, specify that requirement when requesting the configuration and evaluate the proposed sample with the actual controller and drive. The gallery’s speed graphic illustrates nominal SATA generations; it is not a benchmark report for a particular assembly.
Choose the Cable Exit Before Measuring the Route
Look at each connector in its final installed position. A down-angle and a side-exit connector can solve different clearance problems. Rotate the equipment photo mentally only after identifying the L-shaped key; otherwise, a familiar angle name can send the cable toward a chassis wall.
Include neighboring ports, power connectors, and the latch release in the check. If the cable must run behind a drive tray, allow room for the molded connector and a gradual cable route. Ask for the proposed connector dimensions where clearance is critical.
Keep the Internal Data Route Practical
Measure from the intended connector reference points along the actual route, with enough room to install and service the drive. Standard internal SATA data cabling is specified up to 1m. Review longer cable requests as a separate application rather than treating them as a routine 6Gbps guarantee. Additional adapters and extensions also need consideration as part of the complete path.
Plan One Data Connection and a Separate Power Path
A 7-pin SATA data cable does not power the drive. Provide the suitable drive power connection and review its supply requirements separately. For several drives, plan the individual data connections, controller ports, and power distribution together. The cable itself does not create a RAID array or split one SATA port among several drives.
Use Samples to Resolve Fit Questions Early
Install a proposed sample in the finished layout and check device detection, representative data transfers, latch access, and the route with covers or trays in place. Add any required electrical or environmental acceptance criteria to the order requirements. This is more useful than relying on a general claim that a cable has been tested with every controller.
For a quote, send the BC-DAG003 model, required length, host and drive details, port photos, and expected quantity. Include any material, labeling, packaging, or inspection requirements. Send your cable layout for review, or explore the SATA cable range for other routing options.




































