1 image: Click to enlarge

National Instruments · PXI

PXI-2558

The National Instruments PXI-2558 is a 2.5 GHz, 75 Ω RF relay module with four single-pole, double-throw (SPDT) relays. It uses SMB signal connectors and belongs to NI's PXI switching portfolio.

ManufacturerNational Instruments

ModelPXI-2558

Part Number778572-58

Product TypePXI RF relay module

● Available to Order

Condition: confirmed per unit

Request current pricing and lead time for this model. Our team will confirm the exact equipment configuration and condition.

Fast RFQ

Quote: PXI-2558

Free Shippingfull policy linked

30-Day Warrantystandard coverage

30-Day Returnspolicy applies

Technical Supportmodel & compatibility help

PlatformPXI

Relay topologyQuad SPDT

Bandwidth2.5 GHz

Characteristic impedance75 Ω

Signal connectorSMB

SOHO Assistant

Ask about this exact model, a replacement, accessory, driver, rental or repair question.

Ask about specifications, compatibility, availability, rental or repair.

Ask SOHO Assistant

Overview

Product overview

Key product information and technical features.

The PXI-2558 provides a quad SPDT RF switching topology in the PXI platform. NI identifies this model as a 2.5 GHz, 75 Ω relay module, distinguishing it from the multiplexer configurations elsewhere in its RF switch range.

Four SPDT relays in a single PXI RF relay module.
2.5 GHz bandwidth with 75 Ω characteristic impedance.
SMB signal connections documented in NI's RF switch accessory guide.
Explicitly listed as supported hardware in NI-SWITCH 17.0.

Verified specifications

Technical data

Verified product specifications.

Platform	PXI
Relay configuration	Quad SPDT
Number of SPDT relays	4
Switch bandwidth	2.5 GHz
Characteristic impedance	75 Ω
Signal connector type	SMB

Condition & included items

What the actual unit includes

Confirm condition, included accessories and revision before ordering.

Condition

Confirmed per unit.

Included

Device / accessories confirmed in quote.

Revision

Exact revision confirmed when relevant.

Compatibility

Complete the measurement chain

Review system components and compatibility requirements.

National Instruments

Manufacturer

PXI

Modular instrumentation platform

PXI-2558

75 Ω quad SPDT RF relay module

Signal interconnect

SMB connectors

Confirm chassis slot suitability and driver/operating-system support for the intended system; PXI Hybrid slot compatibility has not been verified here.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

PXI-2558 Dimensional DrawingsDimensional Drawings And CAD Models · ni.com

Open →

RF Switch and Transfer Switch Cable and Accessory CompatibilityCable And Accessory Guide · ni.com

Open →

NI-SWITCH 17.0 ReadmeDriver Support Documentation · ni.com

Open →

PXI-2558 Mechanical Drawings and CAD ResourcesTechnical resource

Open →

NI RF Switch Cable and Accessory Selection GuideTechnical resource

Open →

Shipping, warranty & returns

Commercial terms

Review shipping, warranty and return terms before ordering.

Shipping

Free Shipping. Full policy terms apply.

Warranty

30-Day Warranty. Standard coverage applies.

Returns

30-Day Returns. Return policy applies.

Price / Availability

Contact SOHO ProLab for current quote and availability.

Lifecycle services

Source, rent or repair the exact model

Choose pricing, rental or repair for this exact model.

Get Price

Current price, availability and exact unit details.

Rent This Model

Request the exact model or a suitable alternative.

Repair This Model

Send the model and failure symptoms for review.

Explore equipment

Electronic Test and Instrumentation

Shipping, warranty and returns

FAQ

Product-specific questions

Product-specific answers based on available technical information.

What switching topology does the PXI-2558 provide?

It provides four single-pole, double-throw relays, described by NI as a quad SPDT or 4-SPDT RF relay module.

What are its bandwidth and characteristic impedance?

NI identifies the PXI-2558 as a 2.5 GHz, 75 Ω module.

Which signal connectors does the PXI-2558 use?

NI's cable and accessory compatibility guide lists SMB connectors for the PXI-2558.

Is NI-SWITCH support documented?

Yes. The NI-SWITCH 17.0 readme explicitly lists the PXI-2558 under PXI RF Relay Module supported hardware. Verify the requirements of the specific driver release and operating system before deployment.