Keysight (Agilent) M9046A PXIe Chassis,18 slots, 24 GB/s

The Keysight M9046A is an 18-slot PXIe chassis delivering PCIe Gen 3 performance for high-throughput modular instrumentation systems. It combines 24 GB/s system bandwidth with intelligent thermal management and flexible slot architecture to support demanding aerospace, defense, electronic test, and communications applications.

Technical Specifications

• 18 total slots: 13 PXIe slots, 3 PXIe hybrid slots, 1 timing slot, 1 dual-link system slot


• Dual-link system slot supports x8 and x16 PCIe connections Backplane & Connectivity


• PCIe Generation 3


• System bandwidth: up to 24 GB/s (dual-link system slot, 24 PCIe lanes)


• Slot-to-slot bandwidth: up to 8 GB/s per peripheral slot (x8 PCIe link)


• Peripheral slots: x8 PCIe link


• Optional rear trigger access: 8 SMB ports across 3 trigger bus segments


• Multi-chassis power sequencing via Cat 5 cables with RJ-45 connectors


• Remote inhibit and power rail monitoring via DB-9 connector Power & Thermal


• Usable power: up to 1675W


• Cooling capacity: 85 W/slot standard; up to 100 W/slot (Option 003)


• Three auto-speed rear intake fans with eight exhaust temperature sensors


• Airflow direction: bottom to top across module slots Reference Clock


• OCXO 10/100 MHz reference clock (±1 ppm)


• Optional 2.4 GHz reference clock with low phase noise (Option 003) System Monitoring


• Module exhaust temperatures, voltage rails, and fan speeds

Key Features

• High-capacity power supply with per-slot monitoring and control


• Increased airflow volume with acoustically optimized fan operation


• Temperature-adaptive fan speed control reduces noise under partial loads


• Compact, rack-mountable form factor

Typical Applications Aerospace and defense test systems, electronic component characterization, communications signal validation, and multi-module measurement platforms requiring synchronized operation.

Compatibility & Integration Accepts PXIe and hybrid-compatible modules. Supports interconnection of multiple chassis for synchronized power sequencing and distributed measurement systems.