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ID: P08-100474

Keysight MXR258A

Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels

ID: P08-100474
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels

Keysight MXR258A

Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels

Refurbished, like New
Like New Warranty
Accessories Included
KeysightCare available

List Price USD 81,578.00 Save 35%
USD 53,025.70 Excl. taxes.

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Ships from Malaysia.
Ships to United States within 4 weeks.
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Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Keysight Premium Used
Keysight MXR258A
Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels
Configuration: No customization available
Shipping: Limited countries only
Warranty: Like New Warranty
Accessories Standard accessories included
For professional and industrial use only
By clicking the Request Quote button, you agree to Keysight’s Privacy Policy.

Cannot ship to:

European Union

Unit only ships within China.

Unit ships worldwide.

Keysight MXR258A Infiniium MXR-Series Real-Time Oscilloscope / 2.5 GHz / 16 GSa/s / 8 Channels

Keysight Premium Used

Keysight  MXR258A


USD 53,025.70 Save 35%

Addable Options

MXR000-01TUpgrade to 1 TB Removable SSD
AE6910TAutomotive Ethernet Tx Compliance Software 10M to 5GBASE-T1
MXR000-160RTSA (160 MHz Span) and DDC (up to 2 GHz Span)
MXR000-1A7Calibration + Uncertainties + Guardbanding (Not Accredited)
MXR000-200Standard 200 Mpts/ch Memory
MXR000-320RTSA (320 MHz Span) and DDC (up to 2 GHz Span)
MXR000-400Memory Upgrade, from 200 Mpts/ch to 400 Mpts/ch
MXR000-500Standard 500 GB Removable SSD
D9010PAMAPulse Amplitude Modulation PAM-N Analysis Software
MXR000-AMGCalibration + Uncertainties + Guardbanding (Accredited)
D9010XAUCXAUI Tx Compliance Software
D90103BQCIEEE 802.3bq (25GBASE-T) physical layer validation application
D9010EBZCEthernet Tx Compliance Software (10G, MGBase-T, Nbase-T)
D9010MCDPMIPI CSI and DSI Protocol Decode/Trigger Software (C-PHY and D-PHY)
D9040PCICPCI Express Tx Compliance Software
D9010PCIPAdvanced PCIe Protocol Decode/Trigger Software (PCIe 6/5/4/3/2/1, SATA/SAS)
D9010SCNAInfiniiScan Measurement and Zone Triggering Software
D9010UDAAUser Defined Application Software
D9011BDLPBasic Infiniium Protocol Decode/Trigger Bundle
D9020DDRCDDR2 and LPDDR2 Tx Compliance Software
D9030DDRCDDR3 and LPDDR3 Tx Compliance Software
MXR000-FREFrequency Extension
MXR000-GIGMemory Upgrade, from 200 Mpts/ch to 1.6 Gpts Combined Flexible Memory
D9010MILPMilitary Protocol Decode/Trigger Software (ARINC 429, MIL-STD 1553, SpaceWire)
D9010JITAEZJIT Complete - Jitter, Vertical and Phase Noise Analysis Software
D9010EKRP10G/100GBASE-KR 64b/66b and Link Training Decode/Trigger Software
D9010DMBADe-embedding Software (Precision Probe, InfiiniSim Basic)
D9010EMBPEmbedded Protocol Decode/Trigger Software (USB2.0, eUSB2, 10/100 ETH, PCIe 2/1 ...)
MXR000-MSOMSO Upgrade, 16 channels
D9010POWAPower Integrity Analysis Software
D9020DPHCMIPI D-PHY Tx Compliance Software
D9010CPHCMIPI C-PHY Tx Compliance Software
D9010MPLPLow Speed MIPI Protocol Decode/Trigger Software (RFFE, I3C, SPMI)
D9010MPMPMIPI M-PHY Protocol Decode/Trigger Software (DigRF,LLI,CSI-3,UniPro,UFS,SSIC)
D9010USBCUSB 2.0 Tx Compliance Software
D9010USBPUSB4v2, USB4, USB 3.x, and eUSB2 Protocol Decode/Trigger Software
D9020ASIAAdvanced Signal Integrity Software (EQ, InfiiniSimAdv, Crosstalk)
D9010LSSPLow Speed Protocol Decode/Trigger Software (I2C, SPI, RS232, I2S, JTAG ...)
D9010ETHCEthernet Tx Compliance Software (Ethernet, EEE)
D9010AUTPAutomotive Protocol Decode/Trigger Software (CAN, CAN-FD, CAN-XL, LIN, FlexRay, SENT)
D9020AUTPHigh Speed Automotive Protocol Decode/Trigger Software (100BASE-T1, 1000BASE-T1, 10Base-T1S)
MXR000-WAVArbitrary Waveform Generator, 50 MHz
D9010PWRAPower Supply Test Software for Infiniium Oscilloscopes
D9010EXMAExternal Mixer Assistant Software

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Product Specifications

  • 2.5 GHz on all 8 analog channels
  • Faster test speeds than ever before with ASICs from the Infiniium UXR-Series
  • Accurate measurements with ENOB up to 9.0, noise as low as 43 µV
  • Maximum memory is a flexible 1.6 G points
  • Capabilities are extended with 8-in-1 instrument integration
  • Upgradeable in every possible way — including bandwidth and channel upgrades


For Keysight Premium Used listings like-new accessories (e. g. a power cord) are included.

Other accessories that are not listed and included in the offer can be purchased separately at an extra cost with your purchase of a Keysight Used or Keysight Premium Used unit. Please specify in the comment field which additional accessories or support you are interested in.

For separate or post-purchase ordering, please contact your local Keysight office or Keysight Partner here. Or check our online store if available for your region here.

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What You Get

  • Keysight MXR258A Oscilloscopes
  • Fresh Calibration
  • Like-New standard accessories
  • Like-New Warranty
  • Agreed-On configuration

What You Can Add

  • Extended Warranty
  • KeysightCare Assured / Extended
  • Calibration Plan
  • Software (depending on model)

Still not sure about your purchase?

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What are the main differences between Keysight New, Keysight Premium Used & Keysight Used equipment?

  Keysight New Keysight Premium Used Keysight Used
Savings None Up to 70% Up to 90%
Condition New Like New Working Condition ¹
Firmware Latest Updated As is
Calibration Full Full As listed
Accessories New New As listed
Warranty 1 to 5 Years ² Like New 90 Days Warranty
Customization Possible Possible Limited

Learn more about Keysight Premium Used Here

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner here. Or check our online store if available for your region here.

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Oscilloscopes Quick-Facts

What is an Oscilloscope?

Simply put, an oscilloscope is your go-to instrument when conducting a wide range of measurements on an electric circuit. It is an indispensable tool when developing, testing and understanding electronic devices or components. An oscilloscope connects directly to your device under test (DUT) and visually displays the signal it receives. It allows for extensive analysis and troubleshooting when working with electrical and electronic circuitry, making it the single most versatile and valuable tool on your workbench.

Watch the “Oscilloscope Survival Guide – The 2-Minute Guru (s1e1)” now

Digital Storage Oscilloscopes

One of the most commonly used types of scope is the Digital Storage Oscilloscope, or DSO. A DSO samples and converts analog inputs to digital data, making it available for display, analysis and storage (hence the name) for further comparisons. As a DSO can measure signals such as voltage and current over time with accuracy, this is a great choice to help with debugging and general diagnostics to ensure your circuits and devices behave exactly as intended.

Mixed-Signal Oscilloscopes

Mixed-Signal Oscilloscopes, or MSOs, go one step further. They provide all the capabilities of a DSO, but add the option of connecting a logic analyzer. This lets you simultaneously input both analog and digital signals. These can then be displayed and aligned all on the same screen. If you need to monitor and test time-sensitive interactions between analog and digital signals, this instrument will help you do just that. In addition, it tends to be more user-friendly than a pure logic analyzer: If you have worked with a DSO before, it will not be that difficult to switch to an MSO.


Oscilloscopes are vital tools for a wide variety of industries, such as telecommunication, engineering and the sciences. Read our full Oscilloscope Basics Guide form our Knowledge Hub. A sturdy instrument can potentially serve you for many years, making it well worth the investment. Should high prices have so far deterred you from purchasing an oscilloscope or upgrading your current one, the Keysight Used Equipment Platform might be just the solution for you. Here, you can find high-quality instruments at significant discounts. Thanks to our ongoing trade-in program, we are continually adding more items to our inventory. Check our latest offers above.

How to Use an Oscilloscope?

How you can and should use your oscilloscope depends on the model and accessories you have available as well as the measurements you are looking to perform. The simple steps below should set you up for most standard usage situations.

9 Simple Steps – This is How You Use Your Oscilloscope

  1. Start by connecting your probe to the oscilloscope and boot up the instrument.
  2. Make sure the correct channel is turned on and all others are turned off.
  3. Set coupling to DC to see the entire signal or to AC to filter out DC components.
  4. Make sure probe controls are set to the correct attenuation.
  5. Using the trigger button, set your trigger event and source.
  6. Test and tune your probe on the built-in square wave generator by attaching both the ground hook and probe tip. If the image of the waveform does not appear static yet, adjust the trigger level slightly to stabilize it.
  7. If needed, tune the compensation capacitor built into the probe head by adjusting the screw controlling it, until the edges of the square wave are perfectly angular – or simply use the “Auto” tune button, if your scope provides one.
  8. Now you’re ready to start your measurements. Attach your probe and ground clip to your device or component under test.
  9. Don’t forget to use the oscilloscopes display controls to center the resulting waveform on the screen and to zoom in or out as needed.

Overall the more capabilities your oscilloscope has to offer, the more complex setup will become. For example:

  • If you are looking to use an MSO to acquire and analyze both analog and digital signals, timing skews can occur.
  • De-skew controls will align the separate signals for accurate time correlation.
  • You will also need to decide betweentiming and state acquisition, letting the scope either take rhythmically timed samples or whether to go by specific logic state events of the signal.

Work with your oscilloscope and its accompanying fact sheet or user guide to familiarize yourself with all the options available to you. Want to read more? Check out our Oscilloscope Basics Guide or watch our new Mega Guide on how to use oscilloscopes:

How to Use an Oscilloscope to Measure Voltage?

The default settings of most oscilloscopes will display voltage over time. In other words, the waveform displayed on the oscilloscope’s screen, maps a signal with voltage on the vertical or y-axis and time on the horizontal or x-axis. To review how to set up your oscilloscope for measurements have a look at the notes in the “How to Use an Oscilloscope” section above.

Watch “Measuring Voltage with an Oscilloscope – The Keysight 2-Minute Guru (s2e5)” now

Manually Calculating Voltage Using an Oscilloscope

The most basic way of calculating voltage is to then count divisions from top to bottom and multiply this by the volts/division (y-axis scale) displayed on the screen. With the majority of oscilloscopes, however, such manual calculations will be unnecessary.

The Easy Way of Calculating Voltage with your Oscilloscope

Simply choose the “measure” button or touch screen option and select “peak-to-peak voltage”. Alternatively, mark two points with the screen cursors to measure their difference. Some scopes even feature a fully integrated digital volt meter (DVM). With an MSO, you will be able to not only measure analog signals parameters such as voltage over time, but can also verify concurrent digital signal integrity simultaneously. Although triggering works very differently for digital and analog signals, your MSO will de-skew and synchronize them, allowing for accurate and easy measurements. It really provides almost all the functions of a logic analyzer with much greater ease of use and versatility.

Performing a Logic Circuit Test

On top of measuring voltage on your analog signal as described above, you can also use your MSO to measure the digital signal and perform a logic circuit test.

  1. Connect two oscilloscope probes to Channel 1 and Channel 2 and press the “Auto” key.
  2. Use the display controls to center both waveforms on the screen in order to show their intersections and a complete cycle.
  3. At the intersections of the waveforms, use the cursor to measure the voltage, i.e. the low and high voltage flips, then also record the logic output level, i.e. the logic high and logic low.

More on Oscilloscopes: How to use an Oscilloscope – The Oscilloscopes Basics Guide.

How to Measure Inductance with an Oscilloscope and a Signal Generator?

With your oscilloscope you can measure inductance even without an LCR meter. For example, you may use a current probe to measure the inductance on a voltage-current slope, by reading the peak current (amps) and time between pulse (microsecond). Inductance can be found by multiplying these values and dividing the sum by the peak current. You can also create a Tank circuit by setting up an inductor, with a known capacitance, and placing it in series with a resistor. Inductance can then be calculated from the resonant frequency. Alternatively, connect a resistor (with a known value) to the system or inductor under test. Apply a signal and adjust the frequency, so that equal voltages appear across both devices. A DSO will work just as well as an MSO here, as you will only need to rely on the analog functionalities of the scope. More about this topic in this our YouTube series:

“What is Inductance? The 3 Effects of Inductors – The 2-Minute Guru (s2e9)”

Read more in our Oscilloscope Basics Guide.

Where can I buy used Keysight Oscilloscopes?

Keysight offers pre-owned units at a savings of up to 70%. The units are refurbished by Keysight and are fully calibrated and ready to use.

To see our full range of premium used equipment, check out the complete listing here. You can easily search, based on specifications like bandwidth, sampling rate, and memory depth. If you need help choosing the best model for your needs, check out our helpful guides or fill out the “Contact Us” Formhere.

What are the benefits of buying used oscilloscopes from Keysight?

When you purchase a high-quality used scope from Keysight, you now possess a new unit’s superior performance and functionality while saving up to 70%.

We offer two standards of used products: “Premium Used” and “Used”.

Premium Used:

  • Up to 70% savings

  • Like-new condition

  • Updated firmware

  • Fully calibrated

  • Same great warranty as a new product (1-5 years depending on the model and region)


  • Up to 90% savings

  • In full working condition

  • 30-day right of return

Whether buying new or used, you can always count on the high quality and reliability for which Keysight is renowned.

What is the basic function of an oscilloscope?

The primary function of a scope is to measure waveforms of electrical signals. Engineers use them for troubleshooting circuits, testing equipment performance, and understanding electronic circuit behavior. Oscilloscope probes are connected to the circuit being tested so the scope displays voltages on its display screen. The user then adjusts controls to display signal amplitude and offset to observe the waveforms. The waveforms can then be recorded for future reference.

Who would benefit from the use of an oscilloscope?

Engineers in many fields can benefit from the use of a scope. Non-engineers, such as technicians, electricians, and researchers, can also benefit from using an oscilloscope.

For example:

  • An engineer who needs to understand what's happening in the circuit they are working on

  • A technician who needs to troubleshoot equipment performance

  • A student who wants to learn more about circuits

How do you measure current with an oscilloscope?

One of the most common measurements made with a scope is current. Current is simply the measurement of the flow of electricity through a circuit or conductor, measured in amps. Since it's essential to understand how much current is being used in circuits, whether for safety reasons or power usage analysis, this measurement can help determine if something is malfunctioning.

There are three types of current:

  • High current (hundreds to thousands of amps)

  • Low current (microamp to amp)

  • In-between (10 milliamps to 30 amps).

Manual measurements, such as the Ohm's Law Method, can be used to measure current using your scope, but this can be inaccurate and difficult to document. A more efficient way to test current is using a current probe attached to your scope. You will observe your measurement in amps directly on your screen with no calculations required. Different types of current probes can be used with our premium used oscilloscopes.

For a quick and easy explanation of how to measure current with your oscilloscope, check out this video.

Learn Oscilloscope Fundamentals and Get the Most out of Your Equipment

Learn more