Skip to main content
SEGGER's redesigned J-Link ULTRA debug probe in a compact USB-C housing, available in India from GSAS Micro Systems
SEGGER Embedded Software

SEGGER Redesigns the J-Link ULTRA Debug Probe: Same 4 MB/s Speed, Now in a Compact USB-C Housing

GSAS Editorial · · 2 min read

On 30 June 2026, SEGGER announced a redesign of the J-Link ULTRA, the JTAG and SWD probe SEGGER positions as its ultra-fast debug probe. The hardware is smaller, the connector is now USB Type-C, and the probe is easier to mount. The performance engineers rely on is unchanged.

What changed

The redesigned J-Link ULTRA ships in a compact 73 x 46 x 19 mm, 40 gram housing with a footprint smaller than a credit card, USB Type-C connectivity in place of the previous connector, a single 20-pin JTAG/SWD target connector, and integrated mounting holes for fixed bench and rack installations.

What did not change is the part that matters on every build cycle. Download speeds stay at up to 4 MB/s, Real-Time Transfer (RTT) still moves data both ways with minimal CPU overhead on the target and without affecting real-time behavior, and the J-Link software stack works as before: GDB Server, Ozone, and SystemView, with the separately licensed J-Link SDK for custom automation.

“The new design brings the same high-speed performance and advanced functionality users know from J-Link Ultra to a much smaller housing,” said Erik Loehr, Product Manager J-Link at SEGGER.

Why it matters for teams in India

Bench and rack space is finite, and debug probes often live permanently in test fixtures. A smaller footprint with mounting holes makes the J-Link ULTRA easier to fix in place in production and CI setups, and USB Type-C removes the cable hunt. For firmware teams flashing multi-megabyte images many times a day, the 4 MB/s download speed still does the heavy lifting.

GSAS Micro Systems is an authorized SEGGER engineering partner in India. The redesigned J-Link ULTRA is available with INR invoicing, 12 months of SEGGER Basic Support included, and hands-on field application engineering from our offices in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, and Delhi NCR. Order from the GSAS store or request a quote for volume pricing, and explore the full SEGGER portfolio.

Source: SEGGER press release, “SEGGER redesigns J-Link Ultra” (30 June 2026), segger.com/news/pr-260630-redesign-j-link-ultra.

Also appears in:

SEGGER

Interested in SEGGER tools?

Talk to our application engineers for personalized tool recommendations.

Request a Quote Book a Demo
← Back to Blog Discuss This Topic With Us

More from SEGGER

View all →
Row of standalone flash programmers on an Indian electronics manufacturing line, operator checking a status display

Choosing a SEGGER Flasher: Standalone vs Gang vs Secure vs Portable

17 Jul · 7 min

An embedded engineer in a Bengaluru lab studies an instruction-trace timeline on a monitor, with a debug and trace probe wired to a development board on the bench

J-Trace PRO vs TRACE32: An Honest Comparison for India

17 Jul · 10 min

Choosing between SEGGER J-Link PRO and J-Link ULTRA debug probes for embedded development in India

J-Link PRO vs J-Link ULTRA: Which SEGGER Flagship Debug Probe Should You Buy?

11 Jul · 5 min

Networked embedded test rack with debug probes for remote firmware debugging and CI/CD in India

J-Link Remote Server: Shared Debug Probes, Remote Debugging, and CI/CD Test Farms

11 Jul · 6 min

AI data center power test bench with electronic loads and data acquisition validating a high-density rack, GW Instek instruments available in India from GSAS

AI Data Center Testing: Power Shelves, Busbars, Burn-In and Optics

20 Jul · 16 min

Binho Mission Control 3 Public Preview I3C workbench, available in India from GSAS

Binho Mission Control 3 (Public Preview): Point-and-Click I2C, SPI, I3C, and GPIO

20 Jul · 5 min

FAQ

Frequently asked questions

What is the SEGGER J-Link ULTRA?
The J-Link ULTRA is SEGGER's ultra-fast debug probe, a JTAG and SWD probe for Arm Cortex-M/A/R and RISC-V targets with download speeds up to 4 MB/s and Real-Time Transfer (RTT). The 2026 redesign keeps that performance in a compact USB-C housing. GSAS Micro Systems supplies it in India with INR invoicing and local support.
What changed in the redesigned J-Link ULTRA?
SEGGER moved the J-Link ULTRA into a compact housing with a footprint smaller than a credit card, switched to USB Type-C with a single 20-pin JTAG/SWD target connector, and added integrated mounting holes for fixed bench and rack setups. The performance is unchanged: up to 4 MB/s download speed, Real-Time Transfer (RTT), and the J-Link software stack. GSAS Micro Systems supplies the J-Link ULTRA in India with INR invoicing and local support.
Is the redesigned J-Link ULTRA available in India?
Yes. GSAS Micro Systems is an authorized SEGGER engineering partner in India and supplies the J-Link ULTRA with 12 months of SEGGER Basic Support included, INR invoicing, and field application engineering from offices in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, and Delhi NCR.
How fast is the redesigned J-Link ULTRA?
Download speed is up to 4 MB/s, the top of the J-Link family, with SWO capture at up to 100 MHz. Real-Time Transfer moves data both ways with minimal CPU overhead on the target. The 2026 redesign changes the housing and connector, not the performance.
Does the J-Link ULTRA include power measurement?
Yes. The J-Link ULTRA integrates power measurement with 200 kHz sampling and 50 microampere resolution, useful for characterising sleep currents on battery-powered designs alongside normal JTAG and SWD debugging.

Stay in the Loop

Get monthly compliance updates, product insights, and engineering best practices delivered to your inbox.

Related Articles

Row of standalone flash programmers on an Indian electronics manufacturing line, operator checking a status display
Flasher SEGGER

Choosing a SEGGER Flasher: Standalone vs Gang vs Secure vs Portable

Standalone, gang, secure, or portable, the SEGGER Flasher family covers four different production-programming problems, not one. Here is how Indian engineering and production teams should decide.

17 Jul 2026 · 7 min read
An embedded engineer in a Bengaluru lab studies an instruction-trace timeline on a monitor, with a debug and trace probe wired to a development board on the bench
J-Trace SEGGER

J-Trace PRO vs TRACE32: An Honest Comparison for India

SEGGER J-Trace PRO delivers much of the same core streaming-trace capability as Lauterbach TRACE32 for Arm Cortex-M/A/R and RISC-V targets, at a lower cost point. Here is where each platform is the stronger fit for Indian engineering teams.

17 Jul 2026 · 10 min read
Choosing between SEGGER J-Link PRO and J-Link ULTRA debug probes for embedded development in India
Comparisons & Buying SEGGER

J-Link PRO vs J-Link ULTRA: Which SEGGER Flagship Debug Probe Should You Buy?

J-Link PRO and J-Link ULTRA share SEGGER's fastest 4 MB/s download class, so the choice comes down to Ethernet. Here is the decision framework Indian engineering teams can apply in two minutes, with a full verified spec comparison.

11 Jul 2026 · 5 min read