Molex Mini-Fit Jr. 4.2mm Connector Kit with 20AWG Pre-Crimped Cables — 48pcs Housings + 100pcs Wires

Molex Mini-Fit Jr. 4.2mm Connector Kit with 20AWG Pre-Crimped Cables — 48pcs Housings + 100pcs Wires

A comprehensive Molex Mini-Fit Jr. 4.2mm pitch connector kit including 48 male and female housings (5557/5559 series) plus 100 pre-crimped 20AWG wire leads in multiple pin counts. The Molex Mini-Fit Jr. is the industry standard for PC power supply connectors — the same connector used for ATX 24-pin, EPS 8-pin, and PCIe power connectors. Also widely used in industrial power electronics, motor drivers, and high-current wiring harnesses.

Kit Contents

• Male housings (5557): 2, 3, 4, 5, 6, 8, 10, 12-pin — 48pcs total
• Female housings (5559): 2, 3, 4, 5, 6, 8, 10, 12-pin
• Pre-crimped 20AWG wire leads: 100pcs (male and female terminals)

Key Specifications

• Series: Molex Mini-Fit Jr. (5557/5559) | Pitch: 4.2mm
• Wire: 20AWG pre-crimped leads
• Current rating: 9A per contact
• Locking: Yes (dual-beam latch)
• Compliance: RoHS compliant

Why Molex Mini-Fit Jr.?

• ✅ Industry standard — PC ATX/EPS/PCIe power connector series
• ✅ 9A per contact — high current capacity for power electronics
• ✅ Dual-beam latch — secure, vibration-resistant connection
• ✅ 2–12 pin — covers all common power connector configurations

Typical Applications

• PC power supply custom cable modification
• Motor driver and ESC power connector
• Industrial power electronics wiring harness
• Battery pack power connector
• High-current electronics power distribution

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.