XHM229 ATX Power Supply Benchtop Adapter Board Why customers choose the XHM229 Test and use standard ATX desktop power supplies quickly and safely. The board converts a 24‑pin ATX connector into four independently accessible rails so you can power and evaluate devices or circuits without extra wiring or adapters. Protect circuits and simplify troubleshooting. Each output is individually fused and clearly indicated, reducing the risk of damage and making fault isolation straightforward. Save time on prototyping and diagnostics with a compact, benchtopready breakout that puts all rails and grounds on easytouse binding posts and includes a frontmounted power switch for immediate control. Key features and functions Compatibility: Works with desktop ATX power supplies that use the standard 24‑pin connector. Independent outputs: Provides 3.3V, 5V, +12V, and 12V rails brought out separately for mixedvoltage projects. Visual status: Integrated LED indicators show which power rails are active for fast, ataglance verification. Front control: A frontmounted module switch lets you turn power on and off quickly during testing or development. Overcurrent protection: Each of the four output channels uses a userreplaceable 5A fuse to protect connected components from excessive current draw. Breakout design: All power rails and corresponding ground connections are routed to accessible binding posts for secure wire connections and stable voltage access. Benchtopready construction: Designed as a compact adapter board for laboratory and workshop use; straightforward to mount and connect. Applications and use scenarios Power supply validation: Quickly verify ATX PSU rail voltages and load behavior during or QA checks without rewiring the whole system. Prototyping and breadboarding: Provide stable, separate 3.3V, 5V, and 12V sources for microcontroller projects, sensors, and mixedvoltage circuits while keeping grounds accessible. PC diagnostics and component testing: Isolate and test individual rails or components when diagnosing desktop power or motherboard issues. What you can expect Clear, practical control over standard ATX rails with visual feedback and a front power switch. Individual 5A fusing per rail for replaceable, userserviceable protection. Accessible binding posts for reliable connections during development, testing, or work. Model: XHM229. Provides reliable, userfriendly access to 24‑pin ATX power rails for prototyping, diagnostics, and validation tasks.