🧠🔀 MDIN-6 • MDIN-6 Splitter

This splitter takes a single MDIN-6 male plug and branches it into two MDIN-6 female jacks, allowing simultaneous connection of a PS/2 keyboard and mouse to a single PS/2 port. It’s a compact solution for older systems with limited input ports or embedded control panels.
 
🔧 Splitter Format
Input: MDIN-6 Male (6-pin mini-DIN)
Output: 2x MDIN-6 Female (6-pin mini-DIN)
Cable Type: Molded Y-cable or rigid adapter block
Pinout: Typically wired to separate keyboard and mouse signals
Shielding: Often foil-wrapped to reduce EMI/RFI interference
 
🖥️ Compatible Devices
🖥️ Legacy desktop PCs with single PS/2 combo port
⌨️ PS/2 keyboards
🖱️ PS/2 mice
🧠 KVM switches with shared PS/2 input
🧰 Embedded control panels and industrial PCs
🧪 Test benches for legacy input device validation
 
✅ Common Uses
🔄 Connect both keyboard and mouse to a single PS/2 port
🧩 Enable full input functionality on compact or embedded systems
🛠️ Patch legacy input devices into modern KVM setups
🧪 Test PS/2 peripherals without swapping cables
🧼 Maintain compatibility in retro computing environments
 
🧠 Signal Format Notes
Protocol: PS/2 serial interface (bidirectional clock/data)
Voltage: 5V signaling; low current
Pin Count: 6-pin mini-DIN (not interchangeable with MDIN-8 or MDIN-4)
Split Logic: Keyboard and mouse signals routed to separate jacks
❗ Not suitable for MIDI or non-PS/2 applications—different protocols
 
⚠️ Things to Watch Out For
🔌 Not all systems support split PS/2—check motherboard specs
📏 Cable length affects signal integrity—keep splitter short
🧯 Avoid using with USB-to-PS/2 adapters—may not recognize both devices
🔄 Confirm device polarity and pinout before use
🧪 Some splitters are keyboard-only or mouse-only—verify before purchase
 
🛠️ Quick Tips for Beginners
🔍 Look for color-coded jacks (purple for keyboard, green for mouse)
🧭 Use with systems that have combo PS/2 ports labeled “K/M”
🧰 Keep a spare splitter in your retro toolkit for quick swaps
🧪 Test each device independently before using both together
🧼 Store splitter in padded pouch—mini-DIN pins are delicate