Fangrui Product Details Features: Made Of High-quality Materials, Sturdy And .silver Plated Contacts - Provide Longer Life When Used In High Power, High Temperature Applications, Terminals Can Be Crimped Or Soldered To The Cable : Mechanically Keyed Housing - Prevents Accidental Mating Of Components (each Connector Plugs Into Another - No Male And Female Versions Available) Enclosure - Provides Industrial Strength Quality And Durability Genderless Design - Makes Assembly Quick And Easy And Reduces The Need For High Inventories (only One Part To Stock!) Flat Wipe Contact System - A Wiping Cleans The Contact During Disconnection. Specification: 50a Rated Voltage: 600v Contact Material: Copper Silver Fire Protection Rating: Ul94-v0 Operating Temperature -20c To 105c 50a Applicable Wire Diameter: 12-6awg Protection Level: Ip20 Suitable For Installation And Use In High-end Large Vehicles Such As Ships, Yachts, Rvs, And Buses. Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, W Crafted With Attention To Detail