Slim SAS Cables: High‑Performance Internal Connectivity with SFF‑8654 8i to SFF‑8654 74P SAS4.0 Solutions

Slim SAS Cables: High‑Performance Internal Connectivity with SFF‑8654 8i to SFF‑8654 74P SAS4.0 Solutions

Discover next‑generation Slim SAS cables engineered for high‑density servers, RAID arrays, and enterprise storage systems. Our Slim SAS SFF‑8654 8i to SFF‑8654 74P SAS4.0 cable delivers 24Gbps ultra‑high‑speed performance with exceptional signal integrity. As a factory‑direct manufacturer, we offer customizable lengths, connector orientations—including straight, right‑angle, left‑exit, and low‑profile designs—and global shipping to support your project needs.

Optimized for Modern Servers and SAS4.0 Storage Architectures

As enterprise IT environments continue to evolve, the need for faster, more compact, and more efficient internal connectivity grows rapidly. Data centers, cloud servers, and high‑performance workstations rely on advanced cabling solutions to maintain seamless communication between CPUs, HBAs, RAID controllers, and storage backplanes.

Slim SAS technology—especially the SFF‑8654 8i to SFF‑8654 74P SAS4.0 cable—has become the new standard for SAS4.0 infrastructures. With its compact footprint, flat cable profile, and support for 24Gbps SAS signals, Slim SAS provides superior performance in high‑density server environments where airflow, space, and cable routing are critical.

High‑Speed Transmission with a Compact, High‑Density Design

SFF‑8654 8i — Slim SAS Internal Interface (SAS4.0)

The SFF‑8654 8i connector is a high‑density Slim SAS interface designed for internal I/O applications. It complies with the Serial Attached SCSI SAS4.0 standard, supporting:

• 24Gbps SAS signals
• UPI 1.0 at 11.2GT/s
• PCIe 4.0 at 16GT/s
• OpenCAPI at 25Gbps

Its compact, flat form factor makes it ideal for modern servers and storage systems requiring efficient cable routing and reduced connector footprint.

SFF‑8654 74P — Slim SAS Backplane Connector

The SFF‑8654 74‑pin connector is commonly used on SAS4.0 backplanes and disk array modules. It supports:

• High‑density drive interfaces
• 8‑lane SAS4.0 signal transmission
• Next‑generation storage expansion

Together, the SFF‑8654 8i and SFF‑8654 74P connectors enable seamless SAS4.0 connectivity between RAID controllers, HBAs, and storage backplanes.

Flexible Configurations for High‑Density Environments:

We offer Slim SAS SFF‑8654 cables in multiple configurations:

• Straight
• Right‑angle
• Left‑exit
• Right‑exit
• Ultra‑thin low‑profile designs

Cable types include:

• Twin‑axial cable
• Ultra‑thin laminated ribbon cable
• Breakout cable assemblies

Conductor sizes range from 34AWG to 28AWG, ensuring optimal performance for different system layouts.

All Slim SAS products comply with:

• SAS4.0
• SFF‑8654
• PCI Express
• RoHS 2.0
• HF
• UL flame‑retardant standards

Technical Specifications:

Electrical Performance

• Voltage rating: 30VDC per contact
• Contact resistance (Slim SAS 8i plug):
  • ≤80mΩ initial
  • ≤20mΩ after stress testing
• Dielectric withstand: ≥300VDC for 100ms
• Insulation resistance: ≥10MΩ between adjacent pins

Signal Integrity

• Connector impedance: 100Ω ±10%
• Common‑mode impedance: SAS4.0 compliant
• Insertion loss: SAS4.0 compliant
• Maximum crosstalk: SAS4.0 compliant

Mechanical Performance

• Mating force: ≤55.5N
• Unmating force: ≤49N
• Durability: ≥250 mating cycles

Environmental Compliance

• RoHS 2.0 compliant
• China RoHS compliant
• REACH SVHC compliant

These specifications ensure stable throughput, excellent durability, and reliable performance even in high‑density, high‑temperature server environments.

Application Scenarios:

The Slim SAS SFF‑8654 8i to SFF‑8654 74P SAS4.0 cable is widely used in:

• Servers – High‑speed internal storage connectivity
• Data storage systems – SAS4.0 backplane and disk array integration
• Workstations – High‑performance computing and data‑intensive workloads
• Enterprise RAID arrays – 24Gbps redundancy and throughput
• High‑density storage enclosures – Compact routing and efficient airflow

Its support for UPI, SAS4.0, PCIe 4.0, and OpenCAPI makes it ideal for next‑generation hybrid architectures.

Why Partner with Us?

As a professional manufacturer of high‑speed interconnects and precision cable assemblies, we deliver Slim SAS solutions engineered for performance, durability, and seamless integration.

Partnering with us means:

• Factory‑direct supply with competitive pricing
• Strict quality control and international certifications
• Customizable lengths, orientations, and cable types
• Engineering support for modern server and storage system design

Whether you need standard Slim SAS cables or fully customized assemblies, our expertise ensures your infrastructure remains reliable and scalable.

Conclusion:

Slim SAS cables—especially the SFF‑8654 8i to SFF‑8654 74P SAS4.0 high‑speed cable—play a critical role in building faster, smarter, and more scalable storage systems. With support for 24Gbps SAS, PCIe 4.0, and OpenCAPI, these cables deliver exceptional performance for next‑generation enterprise environments.

Their compact footprint, robust performance, and broad compatibility make Slim SAS cables a future‑proof choice for high‑speed internal interconnect solutions.

Explore our full range of Slim SAS and Mini SAS products at http://www.wahsondg.com. Whether you are prototyping or scaling up production, our cables deliver the performance and reliability your systems demand. Contact us for datasheets, MOQ details, and lead times tailored to your region.