Stinger SHD21 HPM Multi Port Power Distribution Block High Current Brass Core with Shoc-Krome Finish and Acrylic Cover The SHD21 from Stinger is a high current brass core power distribution block with a Shoc-Krome finish, providing 2 input ports and 4 output ports for car audio amplifier power distribution and a wide range of automotive and 4WD accessory applications. It accepts 0 or 4AWG inputs with 4 or 8AWG outputs, uses grub screw allen key fittings for secure cable locking, and includes a clear acrylic cover and silver-backed acrylic mounting base. A lifetime warranty against manufacturer defects is included. Product overview Stacking multiple ring terminals on a single post is a common but unreliable approach to power distribution in vehicle installations. The SHD21 replaces this with a high current brass core distribution block that locks each cable in place individually via grub screw allen key fittings, providing a secure and reliable connection for each port without the risk of terminals shifting or losing contact under vibration. The Shoc-Krome plating delivers excellent conductivity and corrosion resistance across all connection points. With two input ports and four output ports, the SHD21 suits multi-amplifier car audio installations and complex 4WD accessory setups where multiple power draws need to be distributed from a central point. Like the SHD20, it is equally suited to air suspension systems, air compressor systems, winches, fridges, lights, compressors, and battery power management applications beyond its original car audio design intent. Features and benefits High current brass core with Shoc-Krome finish: The high current brass core provides excellent power handling and conductivity, with Shoc-Krome plating delivering corrosion resistance and superior contact quality at each connection point. 2 input and 4 output port configuration: The 2x input and 4x output configuration suits multi-amplifier car audio installations and complex accessory setups requiring multiple power draws from a single distribution point. Grub screw allen key fittings: Individual grub screw fittings lock each cable securely in place, eliminating the unreliable stacked ring terminal approach and providing a vibration-resistant connection at every port. Suits 0AWG, 4AWG, and 8AWG cable: The input ports accept 0AWG or 4AWG cable and the output ports accept 4AWG or 8AWG cable, covering a range of installation power requirements. Clear acrylic cover and silver-backed mounting base: The clear acrylic cover protects the terminal connections and provides a clean, finished appearance. The silver-backed acrylic mounting base provides a secure platform for installation. Suitable as positive or negative distribution: The SHD21 can be used for either positive or negative power distribution, providing flexibility in installation layout and configuration. Lifetime warranty against manufacturer defects: The SHD21 is covered by Stinger's lifetime performance warranty against manufacturer defects. What's in the box 1x SHD21 Multi Distribution Block (2x 0 or 4AWG input, 4x 4 or 8AWG output) 1x Clear Acrylic Cover 1x Silver-Backed Acrylic Mounting Base Technical specs Specification Detail SKU SHD21 Brand Stinger Construction High current brass core Finish Shoc-Krome Input Ports 2x 0AWG or 4AWG Output Ports 4x 4AWG or 8AWG Fitting Type Grub screw allen key Includes Clear acrylic cover, silver-backed acrylic mounting base Polarity Suitable for positive or negative distribution Warranty Lifetime against manufacturer defects Frequently asked questions What is the difference between the SHD21 and the SHD20?Both are Shoc-Krome finished power distribution blocks with grub screw allen key fittings, a clear acrylic cover, and a lifetime warranty. The SHD20 provides 1 input and 2 output ports, suited to simpler single or dual amplifier installations. The SHD21 provides 2 input and 4 output ports, suited to more complex multi-amplifier or multi-accessory installations requiring greater distribution capacity. What cable gauges does the SHD21 accept?The SHD21 input ports accept 0AWG or 4AWG cable, and the output ports accept 4AWG or 8AWG cable, covering a range of power distribution configurations for car audio and accessory installations. Can the SHD21 be used for negative as well as positive power distribution?Yes. The SHD21 is suitable for use as either a positive or negative power distribution block, providing flexibility in installation layout and ground distribution configurations. What applications is the SHD21 suited to beyond car audio?The SHD21 is suited to air suspension systems, air compressor systems, 4WD accessories including winches, fridges, lights, and compressors, and battery power management applications. Contact us if you need guidance on suitability for a specific application. Does the SHD21 include a warranty?Yes. The SHD21 is covered by Stinger's lifetime performance warranty against manufacturer defects. Contact us for further details on warranty claims and conditions. Legendary Products & Support From Authorized Dealers When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice: ▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations. ▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support. ▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently. ▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that? Choose wisely. Buy from Frankies BrandBeast today! h2, h3 { color: #000080 !important; } h2 { font-weight: bold; margin-top: 1rem; margin-bottom: 0.5rem; } h3 { font-weight: bold; margin-top: 1rem; margin-bottom: 1rem; }
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