Flasher Hub-4
Gang Programmers4-channel gang programming hub for Flasher Compact, program up to 4 targets simultaneously in production environments. Available in India from GSAS.
Channels
4 Flasher Compact units
Operation
Synchronized gang programming
Host
USB to PC or standalone
Scaling
Up to 24 units with Hub-12
Architecture
Arm Cortex-M/A/R, RISC-V
Overview
About Flasher Hub-4

The Flasher Hub-4 is a 4-channel gang programming hub that connects up to four SEGGER Flasher Compact units for synchronized, parallel firmware programming. In production environments where throughput directly determines cost per unit, the Flasher Hub-4 multiplies programming capacity by four, all connected Flasher Compact units receive the programming command simultaneously and execute in parallel, reducing per-unit programming time to a fraction of single-unit operation.
Gang Programming for Production
Each Flasher Compact connected to the Hub-4 retains its full standalone capability, JTAG, SWD, cJTAG, and SPI interfaces with download speeds up to 3 MB/s across Arm Cortex-M, Cortex-A, Cortex-R, and RISC-V targets. The hub synchronizes the programming trigger so all four units start and complete together, providing consistent cycle times for production planning. Pass/fail LED feedback on each Flasher Compact gives operators immediate per-unit status, enabling quick identification and replacement of defective targets without halting the entire batch.
For higher-volume production lines, the Flasher Hub-12 extends the same architecture to 12 channels, and multiple hubs can be combined for even greater throughput. The modular approach means manufacturers can start with a Hub-4 and scale up as production volumes grow, protecting the initial investment in Flasher Compact units.
Features
| Feature | Specification |
|---|---|
| Channels | 4 (connects 4 Flasher Compact units) |
| Programming Mode | Synchronized parallel gang programming |
| Supported Programmer | Flasher Compact |
| Target Interfaces | JTAG, SWD, cJTAG, SPI (via Flasher Compact) |
| Architectures | Arm Cortex-M/A/R, RISC-V (via Flasher Compact) |
| Programming Speed | Up to 3 MB/s per channel |
| Pass/Fail Feedback | Per-unit LED status on each Flasher Compact |
| Host Connection | USB |
| Scalability | Combine with additional hubs for higher throughput |
| Updates | Free lifetime firmware updates |
Watch the SEGGER Flasher Hub-4 introduction
The Flasher Hub-4 is ideal for small-to-medium batch production, contract manufacturing stations, and any environment where parallel programming of up to four targets improves throughput without the complexity of a fully automated inline system.
Blog
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Common questions about Flasher Hub-4
What is the SEGGER Flasher Hub-4 used for?
Standalone vs gang programming: which Flasher do I need?
Does the Flasher Hub-4 support secure/protected programming?
Can I buy the SEGGER Flasher Hub-4 in India?
Interested in Flasher Hub-4?
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