Mini SAS HD SFF-8643 to 4 x SATA 7-pin Internal Forward Breakout Cable

🔌 Cable Overview

Type: Forward breakout (host/controller to individual SATA drives)

Purpose: Connects a SAS controller with an SFF-8643 port to 4 SATA drives

📐 Connector Details

• SFF-8643 (36-pin)

• Mini SAS HD internal connector

• Found on RAID controllers, HBAs, and some server motherboards

• 4 x SATA (7-pin each)

• Standard SATA data connectors

• Each connects to a 2.5”/3.5” SATA drive

🚀 Performance Specs

• Data Rate

• Up to 6 Gbps per SATA channel

• Compatible with SATA I (1.5 Gbps), SATA II (3 Gbps), and SATA III (6 Gbps)

• SFF-8643 supports SAS 3.0 (12 Gbps), but SATA drives will max out at their SATA limit

• Cable Direction

• Forward breakout only

• From SFF-8643 host to 4 SATA targets

• Does not work in reverse

• Impedance: 100 Ohms differential

• Wire Gauge: Typically 28 AWG or 30 AWG

• Shielding

• Individually shielded pairs

• Overall EMI shielding

⚙️ Use Case

• Connects a RAID controller or HBA with an SFF-8643 port to

• 4 x SATA hard drives or SSDs

• Used in internal storage arrays and server configurations

📏 Typical Lengths

• 0.5 meters (19.7 inches)

• 0.75 meters

• 1 meter (39.4 inches) — longer cables may risk signal degradation with SATA