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Description

HPE S1J07A 50G QSFP56 to SFP56 Direct-Attach Copper Cable

Overview

The S1J07A is a 50G passive Direct-Attach Copper (DAC) cable connecting a QSFP56 port to an SFP56 port at 0.65 meters. At this length, it draws no active power — the copper twinax breakout handles signal integrity passively, which eliminates transceiver power budget concerns and reduces per-port cost compared to active optical solutions. It is purpose-built for short top-of-rack or cross-connect runs in high-density switching environments where rack space is minimal and port-to-port distance is under one meter.

Compatibility

Designed for HPE Aruba Networking switches and line cards with QSFP56 uplink ports paired to SFP56-equipped devices. Typical deployment pairing includes HPE Aruba CX series switches with QSFP56 uplinks connecting to SFP56-capable spine or breakout ports. Confirm port-type compatibility — QSFP56 is a 200G-capable form factor, but this cable operates at 50G per lane. Do not substitute for QSFP28 or SFP28 deployments without verifying electrical and form-factor compatibility with your switch vendor's network switch compatibility matrix.

Installation Notes

At 0.65m, routing flexibility is limited — plan your rack layout before ordering. This length suits same-rack or adjacent-rack connections only; for inter-rack runs, select a longer DAC variant or transition to active optics. Passive DAC cables require no firmware configuration and are hot-pluggable, but verify that your switch's SFP56 and QSFP56 ports are set to the correct speed mode. No tools required for installation.

Specifications
Overview: HPE Aruba Networking 50G QSFP56 to SFP56 0.65m DAC Cable
Length: 0.65 M
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HPE Aruba Networking 50G QSFP56 to SFP56 0.65m DAC Cable - S1J07A

$494.00
$392.99

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