--- product_id: 261494350 title: "DollaTek ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated" brand: "dollatek" price: "$37.56" currency: USD in_stock: true category: "Dolla Tek" url: https://www.desertcart.us/products/261494350-dollatek-zk-4kx-cnc-dc-buck-boost-converter-cc-cv store_origin: US region: United States of America --- # 0.5-30V adjustable voltage 4A max adjustable current LCD displays voltage & current DollaTek ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated **Brand:** dollatek **Price:** $37.56 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and confidence — never settle for less! ## Quick Answers - **What is this?** DollaTek ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated by dollatek - **How much does it cost?** $37.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/261494350-dollatek-zk-4kx-cnc-dc-buck-boost-converter-cc-cv) ## Best For - dollatek enthusiasts ## Why This Product - Trusted dollatek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart LCD Monitoring:** Real-time display of input/output voltage, current, power, and capacity keeps you in control. - • **Robust Protection Suite:** Anti-reverse input/output, overvoltage, overcurrent, and temperature safeguards ensure reliability. - • **Compact & Durable Design:** Sturdy build with enhanced heat dissipation fits perfectly into any professional project setup. - • **Dynamic Current Limiting:** Adjust output current up to 4A to protect your devices and optimize performance. - • **Precision CNC Voltage Control:** Seamlessly boost or buck voltage from 0.5 to 30V with pinpoint accuracy. ## Overview The DollaTek ZK-4KX is a CNC-adjusted DC buck-boost converter module offering adjustable voltage from 0.5 to 30V and current up to 4A. Featuring a clear LCD for real-time monitoring, it includes multiple protection mechanisms such as anti-reverse polarity, overvoltage, and thermal shutdown. Its compact, durable design with enhanced heat dissipation makes it ideal for professional-grade electronics projects requiring reliable, precise power management. ## Description Features:1. CNC adjustment, accurate and fast, can boost and lower voltage, output voltage can be adjusted at will from 0.5-30v, limit current 0-4a can be adjusted at will;2. Anti-reverse connection protection of input end, which will not burn out;3. Anti-reverse irrigation at the output end, no additional anti-reverse irrigation diode is needed to charge the battery;4. The module can be set to open/close by default;5. Multiple software protection mechanisms are available, and the protection threshold is adjustable.When the working parameters of the module exceed the protection threshold, the output will be automatically closed.6. Output ripple is small and PI filter is available;7. Thicken radiator fins. Specifications:Input voltage: 5.0-30vOutput voltage: 0.5-30vOutput current: can work stably at 3A for a long time, and can reach 4A under enhanced heat dissipationOutput power: natural heat dissipation 35W, strengthen heat dissipation 50WVoltage display resolution: 0.01VCurrent display resolution: 0.001AConversion efficiency: about 88%Soft start: yes (with high power and load module may fail when starting)Protection mechanism:Input anti-reverse connection;Output anti-reverse irrigation;Input undervoltage protection (4.8-30V adjustable, default 4.8v)Output overvoltage protection (0.5-31V adjustable, default 31V)Output overcurrent protection 0-4.1a (adjustable, default 4.1a)Overpower protection (0-50w adjustable, default 50W)Overtemperature protection (80-110℃ adjustable, default 110℃)Timeout protection (0-100h adjustable, off by default)Super capacity protection (0-60ah adjustable, off by default)Operating frequency: 180KHZ Dimensions: 79mmx43mmx26mmPackage Included:1 x ZK-4KX CNC DC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module ## Features - LCD can display input/output voltage, output current/output power/output capacity/output time. - CNC adjustment, accurate and fast, can boost and lower voltage, output voltage can be adjusted at will from 0.5-30v, limit current 0-4a can be adjusted at will. - Anti-reverse connection protection of input end, which will not burn out. - Anti-reverse irrigation at the output end, no additional anti-reverse irrigation diode is needed to charge the battery. - The module can be set to open/close by default. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08P37TKHY | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 28,991 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 125 in Industrial Power Supply | | Customer Reviews | 4.1 4.1 out of 5 stars (311) | | Date First Available | 18 Nov. 2020 | | Item Weight | 90 g | | Manufacturer | DollaTek | | Manufacturer reference | ELA13299 | | Package Dimensions | 11.3 x 6.9 x 5.2 cm; 90 g | | Part number | ELA13299 | ## Images ![DollaTek ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated - Image 1](https://m.media-amazon.com/images/I/61By-iuxZiL.jpg) ## Questions & Answers **Q: Hi folks! does this unit need a transformer and a rectifying diode bridge. if so, can anyone recommend which diodes i need? i am a beginner, thanks.** A: It requires a Direct Current input - typically from a battery - and can either "boost" or lower the voltage to the output. A common use would be to supply a constant 12 Volts output from a "12 Volt" (Car) Lead Acid battery that can actually have a fully charged voltage of around 14 Volts, dropping to under 11 Volts when nearly discharged. Another use is to "boost" the Voltage at the output - the same 12 Volt Lead Acid Battery could be used to boost the Voltage to, say, 24 Volts. Yes, you could use a transformer and rectifier diodes, plus regulator/smoothing components to create the DC Input Voltage from the Mains Power (120/240 Volt AC) - but what would be the point? You might just as well buy a Mains AC to variable DC Output Power Supply in the first place. I hope that helps! ## Frequently Bought Together - DollaTek ZK-4KX CNC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module Adjustable Regulated - [2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Voltage Regulator High Power Module with LED Display --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/261494350-dollatek-zk-4kx-cnc-dc-buck-boost-converter-cc-cv](https://www.desertcart.us/products/261494350-dollatek-zk-4kx-cnc-dc-buck-boost-converter-cc-cv) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-20*