--- product_id: 49952361 title: "SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors" brand: "saiyu" price: "€ 0.05" currency: EUR in_stock: false reviews_count: 2 url: https://www.desertcart.hr/products/49952361-saiyu-step-up-voltage-converter-5v-to-9v-dc-power store_origin: HR region: Croatia --- # 80%-90% efficiency 5V to 9V conversion Intelligent protection IC SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors **Brand:** saiyu **Price:** € 0.05 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power Up Your Life with SAIYU! ## Quick Answers - **What is this?** SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors by saiyu - **How much does it cost?** € 0.05 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/49952361-saiyu-step-up-voltage-converter-5v-to-9v-dc-power) ## Best For - saiyu enthusiasts ## Why This Product - Trusted saiyu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up Your Devices:** Transform 5V power into a robust 9V output effortlessly. - • **Smart Safety Features:** Built-in IC circuit ensures over-current, over-voltage, and short circuit protection. - • **Versatile Compatibility:** Perfect for routers, lamps, and more—keep your devices running during outages. - • **Convenient Carrying Design:** Includes a belt and waterproof pocket for easy transport and organization. - • **Responsive Customer Support:** Our team is ready to assist you within 24 hours for any inquiries. ## Overview The SAIYU Step Up Voltage Converter is a versatile 5V to 9V DC power adapter designed for various devices. It features an intelligent protection circuit for safety, a convenient carrying design, and is ideal for powering devices during outages. ## Description Tips: 1.The step up cable support recommand 5V 2A input and 9V 800mAh output max. Convert Rate: 80%-90%. 2.Each cable inbuilt an intelligent protection IC circuit, please check your input or output devices current or voltage is whether over the cable’s limit when you find your device is out of work. Specifications: Product Type: DC-DC Converter 5V to 9V Cable length:1.6 meter Input connector: USB A Male Output connector: DC male jack 5.5*2.1mm Input: 5V 2A（recommend) Output: 9V 800mAh Max Product Weight: 40g Certificate: CE/RoHS/FCC Package: 1*USB A male to DC connector cable 3*replacement connector(5.5*2.5mm,3.5*1.35mm,4.8*1.7mm) 1*waterproof pocket1*Belt How to judge if the device work with the cable: Please consider following points before ordering: 1)Device current not over 2A. 2)Input power voltage is 5V,output device voltage is 9V. 3)Output DC connector size is 5.5*2.1mm,also we provide you 3 extra connectors,these will suit most of the your device. How to contact us 1.Click on "SAIYU-EU" next to "Sold by", then click on "Ask a question" on the right top of page,we will get your message soon. 2.Send us email (saiyueu@hotmail.com) ,we will get your problem and provide you a solution within 24 hours. Thanks for your choice! ## Features - 【Specification &Instructions】Input: 5V USB A male; Output: 9V Connectors: DC jack 5.5*2.1mm to USB A male. Note:The step up cable support recommend 5V 2A input and 9V 800mAh output max. Convert Rate: 80%-90%.Each cable inbuilt an intelligent protection IC circuit, please check your input or output device’s current or voltage is whether over the cable’s limit when you find your device is out of work. - 【Multi-Applicable】You can use it to power the router via power bank during power cuts. And also used in other device which is 5V, such as: router, stepper motor, desk lamp, solar panel, USB power pack, power adapter, etc. - 【Belt Design】Each convert cable came with a belt,tie with the cable,anti-loss,also we provide a waterproof small pocket,convenient to use and carry. - 【Functional Design】The Intelligent IC circuit provides over-current, over voltage and overload protection, short circuit protection,Synchronous rectification,made convert ratio more than 80%-90% , lower heat and long working time. - 【Customer Service】Please free to contact us if you have any questions or product issue,our friendly customer service team will help you solve it efficiently within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | UPC | 763383235338 | | Manufacturer | SAIYU | | Package Dimensions | 11.9 x 7.9 x 3.5 cm; 80 g | | Item model number | SYEU-ST03 | | Processor Type | 68030 | | Processor Speed | 2 GHz | | RAM Size | 5 GB | | Computer Memory Type | EEPROM | | Hard Drive Size | 2 GB | | Hard Drive Interface | USB | | Are Batteries Included | No | | Item Weight | 80 g | | Guaranteed software updates until | unknown | ## Product Details - **Brand:** SAIYU - **Power source:** Corded Electric - **Current rating:** 2 Amps - **Minimum frequency:** 50 Hz - **Specification met:** FCC, RoHS ## Images ![SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors - Image 1](https://m.media-amazon.com/images/I/71C1MgtoLhS.jpg) ![SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors - Image 2](https://m.media-amazon.com/images/I/71mGafaZzhS.jpg) ![SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors - Image 3](https://m.media-amazon.com/images/I/81gWePEcDEL.jpg) ![SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors - Image 4](https://m.media-amazon.com/images/I/61zOprNNQUS.jpg) ![SAIYU Step Up Voltage Converter 5V to 9V DC Power Adapter Voltage Regulator Transformer Plug With Belt/Waterproof Pocket/3 Replacement DC Connectors - Image 5](https://m.media-amazon.com/images/I/61vVifv6K-S.jpg) ## Questions & Answers **Q: Is this centre-negative?** A: Centre is positive ## Customer Reviews ### ⭐⭐⭐ Does the job BUT....... *by D***S on 9 November 2022* This lead works OK BUT it was putting out 12VDC NOT 9V!Fortunately for me I checked the voltage.I needed to cut and re splice the plug back to front any way to obtain the correct polarity for my TC Helicon Pedal so once I established that the voltage was too high I put a Buck Converter in line and tuned it to 9V output.I'd actually rate it 3.5 stars ### ⭐⭐⭐⭐ External power for Panasonic Mirrorless cameras. *by V***E on 1 July 2021* Got a couple of these to connect Anker power banks to Panasonic G7 and G85 cameras. Sadly, none of the supplied adapters matched the dummy batteries. On the plus side I have some spare. On powering up (you should switch on the Anker first) the cameras work fine, and for less than the price of a battery grip. --- ## 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.hr/products/49952361-saiyu-step-up-voltage-converter-5v-to-9v-dc-power](https://www.desertcart.hr/products/49952361-saiyu-step-up-voltage-converter-5v-to-9v-dc-power) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-24*