Description
SFF-8654 4i to SFF-8643 4i Internal Cable Assembly – High-Speed SAS 24G / PCIe Gen 4 Interconnect for Storage Systems
The SFF-8654 to SFF-8643 4i internal cable assembly is a compact, high-performance solution designed to bridge next-generation MiniLine SAS 4i (SFF-8654) interfaces with legacy HD Mini SAS 4i (SFF-8643) ports. Engineered for SAS 24G and PCIe Gen 4.0 signaling, this cable supports high-speed data transmission between host adapters, RAID controllers, and backplanes in enterprise and hyperscale environments.
⚙️ Key Features
- Connector Configuration:
- SFF-8654 4i plug to SFF-8643 4i plug
- Enables seamless connectivity between modern MiniLine SAS interfaces and HD Mini SAS infrastructure
- Protocol Support:
- Fully compatible with SAS 24G (Serial Attached SCSI) and PCIe Gen 4.0
- Supports up to 24Gbps per lane for SAS and 16GT/s per lane for PCIe
- Wire Gauge:
- Constructed with 32AWG high-quality copper conductors for optimal signal integrity in short-reach internal applications
- Signal Integrity:
- Maintains 100-ohm differential impedance for stable high-speed transmission
- Low insertion loss and minimal crosstalk for reliable performance in dense server environments
- Compact Design:
- Ideal for space-constrained systems requiring high-density internal cabling
- RoHS Compliant:
- Manufactured in accordance with global environmental and safety standards
🧩 Applications
- Enterprise Storage Systems: Connects MiniLine SAS 4i RAID or HBA cards to HD Mini SAS backplanes or U.3/U.2 drives
- PCIe Gen 4 Interconnects: Supports internal PCIe signaling for NVMe SSDs and accelerator modules
- Data Centers: Enables high-speed internal links in servers, JBODs, and storage enclosures
- High-Performance Computing (HPC): Facilitates low-latency, high-bandwidth internal connectivity for compute nodes and storage fabrics
- OEM & ODM Integration: Ideal for custom server and storage builds requiring mixed-interface compatibility and compact routing
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