Wholesale SAS Cables for Enterprise Storage and Server Connectivity

TLD Electronics is a professional cable manufacturer including SAS Cables in China, providing high-speed interconnect solutions for data centers, enterprise storage, server systems, and OEM projects.

Our SAS cables are engineered for high-frequency data transmission in mission-critical storage environments, supporting multiple connector types including Mini SAS, Mini SAS HD, SlimSAS, and customized cable assemblies. With advanced production capabilities, rigorous high-frequency testing and OEM customization services, we supplies SAS Cables for global server manufacturers, storage system integrators, data center operators and brand customers.

We support different requirements in cable length, connector combination, gauge size, jacket material, color, packaging and branding. Our manufacturing capabilities cover small trial orders as well as large-volume production.

What are SAS Cables?

A SAS (Serial Attached SCSI) Cable is a high-speed serial interconnect that transfers data between host devices (servers, RAID controllers, HBAs) and storage peripherals (hard disk drives, solid-state drives, tape drives, storage enclosures). SAS is the evolution of parallel SCSI device interfaces to a serial point-to-point architecture. A SAS physical link consists of four wires configured as two differential signal pairs, enabling simultaneous bi-directional data transmission. TLD Electronics manufactures these cables with precision-engineered twin-axial conductors, multi-layer shielding, and high-reliability connector housings to ensure signal integrity and low insertion loss across SAS 2.0, 3.0 and 4.0 specifications.

SAS 2.0, SAS 3.0 and SAS 4.0 Cable Differences

Different SAS generations use different transmission rates and system requirements. The cable specification should be matched with the controller, backplane, storage device and required transmission performance.

SAS Generation	Data Rate per Lane	Max Channels	Key Features & Applications
SAS 2.0	6 Gbps	4x (24 Gbps)	HDDs, basic server storage, legacy enterprise systems
SAS 3.0	12 Gbps	4x (48 Gbps)	SSDs, high-performance servers, RAID systems, HBAs
SAS 4.0	22.5-24 Gbps	4x (96 Gbps)	AI servers, high-density storage, data centers, requires certified connectors

Comparative advantages between SAS Cables and traditional parallel SCSI cables

Performance Metric	Traditional Parallel SCSI Cable	TLD Electronics SAS Cable
Cable form factor	Thick, bulky parallel cable	Significantly thinner, reduced pin count
Data transmission	Half-duplex, shared bus	Full-duplex, point-to-point dedicated pathway
Differential impedance	Not standardized	100 Ω ±10% precision controlled
Shielding	Limited or none	Individual shielded pairs + overall braid — rejects EMI
Insertion loss	Unspecified	≤6 dB (internal), meeting SAS-3/4 requirements
Connector durability	~500 cycles	≥2,500 cycles (reinforced strain relief)
Operating temperature	0°C ~ +55°C	-40°C ~ +85°C (extended range options)

SAS Connector Options

TLD Electronics provides common SAS connector configurations for internal, external and space-constrained storage applications.

Mini SAS

SFF-8087 is commonly used for internal Mini SAS connections, while SFF-8088 is used for external Mini SAS connections.

Mini SAS HD

SFF-8643 provides an internal Mini SAS HD interface, while SFF-8644 is used for external applications.

Slim SAS

SFF-8654 is used for SlimSAS applications where a compact connector format is required.

7-Pin SAS

7-pin SAS connectors can be supplied for drive-side and compatible storage connections according to the customer's equipment configuration.

For OEM projects, connector combinations can be selected according to the controller, backplane and storage device interfaces.

Key Features

1. Controlled High-Frequency Transmission

SAS cable assemblies are manufactured with controlled differential impedance and high-frequency cable structures to support stable data transmission between storage devices and controllers.

2. Multiple Connector Configurations

Mini SAS, Mini SAS HD, SlimSAS and 7-pin SAS options allow the cable assembly to be matched with different server and storage interfaces.

3. Shielding for Dense Storage Environments

Individual pair shielding and overall shielding configurations are available to help control electromagnetic interference in dense server and storage environments.

4. Flexible Cable Construction

Cable gauge, jacket material and assembly construction can be selected according to routing space, flexibility and application requirements.

5. OEM Cable Assembly

TLD Electronics can customize cable length, connector combination, conductor gauge, jacket material, color, overmold, logo and packaging for OEM and private-label projects.

Technical Characteristics

Parameter	Typical Value
Differential impedance	100 Ω ±10%
Insertion loss (internal assembly)	≤6 dB
Data rate per lane	Up to 24 Gbps (SAS-4)
Operating temperature	-40°C ~ +85°C
Connector durability	≥2,500 cycles
Flammability rating	UL 94V-0

Specific electrical performance should be confirmed against the selected cable length, connector configuration and customer specification.

Application Areas

Enterprise Servers

SAS cables connect storage controllers, HBAs, backplanes and storage drives in enterprise server systems.

Storage Arrays

Suitable for HDD and SSD storage systems where SAS interfaces are used for data communication between controllers and storage devices.

RAID and HBA Systems

Used between RAID controllers or HBAs and compatible storage backplanes or enclosures.

Data Centers

Suitable for rack-mounted storage systems where cable routing, connector compatibility and signal integrity are important.

OEM Storage Equipment

Customized SAS cable assemblies can be integrated into storage appliances, servers and other equipment according to the manufacturer's interface design.

Manufacturing Process

We control the main cable assembly processes from conductor preparation through final inspection.

1. Conductor Preparation

Twin-axial conductors are prepared according to the required gauge and electrical design.

2. Insulation and Jacket Extrusion

The selected insulation and jacket materials are processed according to the required flexibility, protection and environmental conditions.

3. Shielding

Individual pairs and overall shielding are assembled according to the required electromagnetic and signal-integrity characteristics.

4. Connector Assembly

SAS connectors are assembled to the cable and secured with appropriate strain-relief and overmolding structures.

5. Electrical and Appearance Inspection

Finished cable assemblies can be checked for continuity, impedance, insertion loss, return loss, appearance and other agreed inspection requirements before shipment.

FAQ

What SAS cable connectors are available?

We supplies SFF-8087, SFF-8088, SFF-8643, SFF-8644, SFF-8654 and 7-pin SAS configurations, with additional connector combinations available for OEM projects.

How do I choose between Mini SAS, Mini SAS HD and Slim SAS?

The choice depends mainly on the interface used by the controller, HBA, backplane or storage enclosure. Provide the connector part number, equipment model or a photo of the interface for configuration review.

Are SAS 2.0, SAS 3.0 and SAS 4.0 cables interchangeable?

Cable compatibility depends on the connector, cable construction, length and the equipment on both ends. The cable should be selected according to the complete system specification rather than the SAS generation alone.

Can you customize cable length and connector combinations?

Yes. We can customize cable length, connector type, gauge, jacket material, shielding, color, logo and packaging according to the confirmed specification.