JRready
JRready ST6546 Mini-Fit Jr. 2 4 6 Pin Molex Connector Kit Crimping Tool 4.2mm Pitch Power Wire Connectors Receptacle Plug Housing 18-24AWG Terminals with Crimper Pin Extractor Tool
Bottom line: The JRready ST6546 Mini-Fit Jr. 2 4 6 Pin Molex Connector Kit Crimping is a specs-and-price decision rather than a crowd-consensus one in the power supplies & cables category, priced around $135.00 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by JRready's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored JRready ST6546 Mini-Fit Jr. 2 4 6 Pin Molex Connector Kit Crimping… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. JRready's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- PRECISION CRIMPING TOOL: For MOLEX Mini-Fit Jr. Series terminals. The crimping dies are carefully designed with precise geometry to perfectly shape the conductor and insulation wings. The result is a professional B-shaped crimp that ensures maximum mechanical strength and optimal conductivity to meet OEM standards.
- PIN REMOVAL TOOL: The unique smooth built-in plunger design pushes pins out from behind the connector blocks, the pull-out and lock protective cover effectively safeguards the tips. Made from special materials with hardness up to HV500, these tips ensure durability, wear resistance, and toughness.
- JRN011 SERIES CONNECTOR: 4.2mm pitch connector is made of PA66, Flame retardant grade is UL94-V0. The operating temperature range is from -40℃ to +105℃. Under environmental conditions of 23℃ ± 5℃, the temperature rise at 9A current is no more than 30℃. The connector can be mated and unmated over 50 times.
- CONTACTS DESIGN: The 18-24AWG contact is made of tin-plated brass. Rated current is 9A MAX, rated voltage is 250V AC, DC. Crimp pin and receptacle terminals feature multiple points of contact for a reliable electrical connection and a higher current carrying capacity. Locking tangs on the crimp contacts secure them firmly in the connector housing.The kit includes a large quantity of terminals for crimping practice or as spares, providing a great user experience, especially for beginners.
- WIDELY USED: Apply in wire to board and wire to wire combinations for industrial . The connectors widely used to household appliances, electrical maintenance, consumer electronics, network servers, industrial automation, data computing.
Full Specifications
| Brand | JRready |
|---|---|
| Color | Chrome |
| Grip Type | Ergonomic |
| Handle Type | ergonomic |
| Model Number | Mini-Fit Jr. Pin Connector Tool Kit |
| Handle Material | Plastic, Rubber, Metal |
| Manufacturer Part Number | ST6546 |
| Specific Uses For Product | wire to board and wire to wire combinations for industrial, household appliances, electrical maintenance, consumer electronics, network servers, industrial automation, data computing |
Ready to buy?
JRready ST6546 Mini-Fit Jr. 2 4 6 Pin Molex Connector Kit Crimping Tool 4.2mm Pitch Power Wire Connectors Receptacle Plug Housing 18-24AWG Terminals with Crimper Pin Extractor Tool is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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