Standard SFF Compatibility: Designed for standard Mini-ITX, Flex-ATX, and 1U cases. Perfect for retail motherboards, HTPCs, POS systems, and compact servers. Dimensions: 5.9" x 3.21" x 1.59" Versatile Connectivity: Includes 1x 20/24-pin Main and 1x 8-pin (4+4) CPU connectors. Both are separable (20+4 and 4+4) to support both modern and legacy motherboards Essential Power Ports: Equipped with 2x SATA and 2x Molex connectors to power your internal SSDs, hard drives, and system fans 300W Reliable Output: Delivers stable power for compact builds. Note: Unit requires full connection to the motherboard to power on; it will not spin when connected only to a wall outlet Quiet Cooling & Safety: Features a 40mm double ball-bearing fan with thermal speed control and a full industrial safety suite (OVP, OCP, SCP) for total system protection Universal Mini-ITX & Flex-ATX Fit: Specifically engineered for Small Form Factor (SFF) cases, 1U servers, and HTPC builds. This 300W unit fits standard ITX/Flex-ATX chassis (Dimensions: 5.9" x 3.21" x 1.59"). IMPORTANT: The 24-pin and 8-pin CPU connectors are separable (20+4 and 4+4) to support both modern and legacy motherboards by simply sliding the connectors apart Reliable Power & Essential Connectivity: Provides stable 300W output with 2x SATA and 2x Molex connectors for SSDs, HDDs, and fans. IMPORTANT: This PSU requires a signal from the motherboard to start; it will not power on or spin the fan simply by plugging it into a wall outlet. Ensure all cables are firmly seated in the motherboard before pressing the PC power button Smart Cooling & Preset Safety: Features a 40mm double ball-bearing fan with built-in thermal speed control for quiet, efficient operation. For your convenience, the manual selector switch is factory-preset to 115V for North American outlets. International Users: You must manually toggle the switch to 230V if used in higher voltage regions to ensure safe operation and prevent damage. Includes a full industrial safety suite: Overvoltage (OVP), Overcurrent (OCP), and Short Circuit Protection (SCP) Apevia ITX-AP300W: The Versatile Small Form Factor Power Solution Whether you are reviving a compact office workstation, building a silent home theater PC (HTPC), or assembling a budget Mini-ITX rig, the Apevia ITX-AP300W provides the reliable power you need. Its standard Flex-ATX / 1U dimensions ensure fitment in a wide variety of slim cases and compact servers. COMPATIBILITY CHECKLIST (Read Before Buying) 1. Form Factor: Standard Flex-ATX / Mini-ITX / 1U. 2. Dimensions: 5.9" x 3.21" x 1.59" (150mm x 81.5mm x 40.5mm). 3. Graphics Support: Ideal for Integrated Graphics (APUs) or low-profile GPUs that do not require an external PCI-E power cable. ⚠️ IMPORTANT COMPATIBILITY WARNING: This is a standard retail unit. It is NOT a direct replacement for proprietary power supplies found in many Dell, HP, or Lenovo slim desktops that require non-standard 6-pin, 10-pin, or 14-pin motherboard connectors. Please verify your motherboard port before ordering. INSTALLATION FAQ & TROUBLESHOOTING 1. Unit not powering on? The PSU requires a "power-on" signal from the motherboard. It will not start just by plugging it into the wall. Ensure the 24-pin and 4+4 pin CPU cables are fully seated before pressing the PC power button. 2. Voltage Switch Setting? For your convenience, this unit is factory-preset to 115V, making it ready for immediate use in North America. International Users: If you are using this unit in a region with 230V power, you must manually toggle the red switch on the back of the PSU to the 230V position before powering on to prevent permanent damage 3. Separable Connectors? Yes. The 8-pin CPU connector splits into 4+4, and the 24-pin splits into 20+4 to accommodate various motherboard standards. 4. Crypto Mining? Not suggested for 24/7 mining applications; use for mining purposes will void the warranty