Sega Genesis Model 2 AC Adapter MK-2103 Specifications admin, April 22, 2025April 22, 2025 Sega Genesis Model 2 AC Adapter MK-2103 Specifications The official part number for the Sega Genesis Model 2 AC adapter is MK-2103. This adapter was specifically designed to power the Genesis Model 2 console and other Sega hardware, such as the Sega 32X and Sega CD Model 2. Here’s a detailed technical breakdown of its specifications and compatibility: Technical Specifications Output Voltage: The adapter outputs 10V DC. This voltage is slightly higher than the 9V standard used by some other consoles, ensuring stable operation for the Genesis Model 2. Current (Amperage): The adapter provides 850mA (0.85A) of current. This is sufficient for the Genesis Model 2, which typically draws less than 850mA during operation. The adapter is designed to handle power spikes without overheating. Polarity: The adapter uses a center-positive polarity configuration. This means the inner pin of the barrel connector is positive (+), and the outer sleeve is negative (-). Using an adapter with the wrong polarity can damage the console. Connector Type: The adapter features a barrel plug connector. The dimensions of the plug are designed to fit snugly into the Genesis Model 2’s power input port, ensuring a secure connection. Input Voltage: The adapter is designed for 120V AC input at 60Hz, which is standard for North American electrical outlets. Compatibility Sega Genesis Model 2: The MK-2103 is the official power supply for this console. Sega CD Model 2: Fully compatible, as the power requirements are identical. Sega 32X: Compatible, as it shares the same voltage, current, and polarity specifications. Sega Nomad: Fully compatible with the Sega Nomad, as it matches the console’s power requirements. Identifying the MK-2103 The part number MK-2103 is typically printed on the label of the adapter, along with its electrical specifications. The label also includes safety certifications and the Sega logo, ensuring authenticity. Important Notes Do Not Use with Genesis Model 1: The Genesis Model 1 requires the MK-1602 adapter, which has different voltage and current specifications. Third-Party Replacements: If the original MK-2103 is unavailable, ensure any replacement adapter matches the exact specifications (10V DC, 850mA, center-positive) to avoid damaging your console. Sega CD Sega Genesis AC AdapterMK-2103Sega 32XSega CD Model 2Sega Genesis Model 2Sega Nomad