--- product_id: 278283463 title: "USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord" brand: "eujgoov" price: "NT$421" currency: TWD in_stock: true reviews_count: 13 category: "Eujgoov" url: https://www.desertcart.tw/products/278283463-usb-to-dc-booster-cable-5v-to-9v-12v-step store_origin: TW region: Taiwan --- # 5V to 12V adjustable boost Digital voltage display Power bank compatible USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord **Brand:** eujgoov **Price:** NT$421 **Availability:** ✅ In Stock ## Summary > ⚡ Boost your gear, ditch the limits! ## Quick Answers - **What is this?** USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord by eujgoov - **How much does it cost?** NT$421 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/278283463-usb-to-dc-booster-cable-5v-to-9v-12v-step) ## Best For - eujgoov enthusiasts ## Why This Product - Trusted eujgoov brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up Anywhere:** Transforms any 5V USB source into 9V or 12V power—perfect for on-the-go pros. - • **Compact & Portable:** Lightweight, tangle-free design fits effortlessly into your tech arsenal. - • **Smart Voltage Control:** Digital display lets you monitor and adjust output voltage with precision. - • **Plug & Play Convenience:** Simply connect to your power bank or USB supply—no bulky adapters needed. - • **Universal Compatibility:** Ideal for optical modems, wireless routers, and other 9V/12V devices. ## Overview The USB to DC Booster Cable by Eujgoov converts standard 5V USB power into adjustable 9V or 12V output, featuring a clear digital voltage display for easy monitoring. Compact and lightweight, it’s designed for powering devices like wireless routers and optical modems directly from power banks or USB chargers, making it an essential tool for professionals needing reliable, portable power solutions. ## Description Buy USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. Review: Very good, happy with the purchase. - I bought it because I'd forgotten back to Greece my multi-output Power Supply for my Guitars/Amps/Pedals gear set and I wanted a quick solution to be able, till my next trip to Greece and carrying back at UAE the aforementioned, to operate here in Dubai, one device only, either a Multi-Effect Pedal or a Looper, each time. Both, the Pedal and the Looper are working fine with the USB-DC Booster, I just had to purchase additionally a Reverse-Polarity Converter, to have the center/tip Negative. Wish they were manufacturing the same with more Outputs and Current capability. It would be a very convenient solution, as we all have dormant/not-in-use-anymore 5V Chargers from old abandoned Smartphones. I'm happy with the purchase and I ordered a 2nd one that is on its way already. Review: one of the item does not have the led working - Ordered 2 quantities. Had to de-solder the connections as i needed center negative to se with guitar pedals. Though one of the item, the led voltage indicator does not work. Other than that, both worked as i intended for my use. Just need to take care of the units as they dont look durable enough to withstand accidentally stepping on them… ## Features - PRACTICAL TO USE: It can be powered by a power bank and 5V power supply, which is very convenient and practical. - APPLICABLE EQUIPMENT: After boosting, it is suitable for optical modems, wireless routers and other equipment. - SPECIFIC FEATURES: DC3.5, standard DC port, mainly used for USB to DC, 5V to 9V 12V step‑up. - CLEARLY DISPLAY: With digital display function, which can provide much convenience for your using and operating. - With compact shape, lightweight and portable, take up no space and you can put it anywhere. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08VD1VDMX | | Best Sellers Rank | #28,901 in Computers ( See Top 100 in Computers ) #1,992 in USB Cables | | Brand | Eujgoov | | Brand Name | Eujgoov | | Cable Type | USB | | Cable type | USB | | Color | red | | Compatible Devices | Optical modems, wireless routers, devices requiring 9V or 12V DC input | | Compatible Phone Models | No Compatible Phone Models | | Compatible devices | Optical modems, wireless routers, devices requiring 9V or 12V DC input | | Compatible phone models | No Compatible Phone Models | | Connectivity Technology | USB | | Connector Gender | Male-to-Female | | Connector Type | USB | | Connector type | USB | | Customer Package Type | sealed anti-static bag | | Customer Reviews | 3.6 out of 5 stars 111 Reviews | | Ethernet Cable Category | Cat 5 | | Included Components | inc | | Indoor Outdoor Usage | Indoor | | Item Length | 2.6 Feet | | Item Shape | Round | | Item Weight | 34 Grams | | Manufacturer | Eujgoov | | Maximum Current | 3.5 Milliamps | | Model | 5521m | | Number of Items | 1 | | Number of Pins | 4 | | Other Special Features of the Product | Tangle Free | | Outer Material | ABS | | Part Number | Eujgoov90rxndtosk601 | | Recommended Uses For Product | charging | | Special features | Tangle Free | | Unit Count | 1.0 Count | | Wattage | 10 watts | ## Product Details - **Brand:** Eujgoov - **Cable type:** USB - **Compatible devices:** Optical modems, wireless routers, devices requiring 9V or 12V DC input - **Connector type:** USB - **Special features:** Tangle Free ## Images ![USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord - Image 1](https://m.media-amazon.com/images/I/61mQPvkUbPL.jpg) ## Questions & Answers **Q: Can it be changed 5v dc output power station to old version laptop** A: Nop **Q: Can this work with laptop?** A: Yes, on a 9V or a 12V input that matches the DC Jack dimensions of the device. **Q: Can i use for mi box S ?** A: This is the adapter which increases the voltage from 5 volt to 9 volt and it doesn’t matter where you wanna use it bro . So your device need to be match with 9 volt **Q: can i use it for device taking 8 v 1.5a?** A: When i used it desconnect ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good, happy with the purchase. *by M***S on 28 March 2022* I bought it because I'd forgotten back to Greece my multi-output Power Supply for my Guitars/Amps/Pedals gear set and I wanted a quick solution to be able, till my next trip to Greece and carrying back at UAE the aforementioned, to operate here in Dubai, one device only, either a Multi-Effect Pedal or a Looper, each time. Both, the Pedal and the Looper are working fine with the USB-DC Booster, I just had to purchase additionally a Reverse-Polarity Converter, to have the center/tip Negative. Wish they were manufacturing the same with more Outputs and Current capability. It would be a very convenient solution, as we all have dormant/not-in-use-anymore 5V Chargers from old abandoned Smartphones. I'm happy with the purchase and I ordered a 2nd one that is on its way already. ### ⭐⭐⭐⭐ one of the item does not have the led working *by C***G on 25 September 2022* Ordered 2 quantities. Had to de-solder the connections as i needed center negative to se with guitar pedals. Though one of the item, the led voltage indicator does not work. Other than that, both worked as i intended for my use. Just need to take care of the units as they dont look durable enough to withstand accidentally stepping on them… ### ⭐ Didn't work with AZ-GTi telescope mount, disconnects intermittently *by H***. on 6 February 2023* I bought it to power 12V 0.75A telescope mount. It powered the mount well to start with, but kept getting disconnected intermittently. This happens on USB AC wall adapter and on USB QC power bank. The voltage indicator LED flashes momentarily while operating the telescope and the power goes off and the mount gets disconnected and all session settings are reset. ## Frequently Bought Together - USB to DC Booster Cable 5V to 9V 12V Step Up Digital Display Adjustable 5521m Power Bank Router Cord - ELECDON Voltage Converter, USB to 9 V, 5 V to 12 V Step Up, USB Cable DC 5 V Boost to 9 V 12 V Voltage Converter 1 A Step-up Volt Transformer Power Regulator Line with LED Display - eWINNER DC 5V USB 2.0 male to DC 12V male power Cable Voltage Step Up Adapter Cable with DC 5.5 x 2.1mm jack USB 5V to DC 12V Cable - 1.5m/5ft --- ## 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.tw/products/278283463-usb-to-dc-booster-cable-5v-to-9v-12v-step](https://www.desertcart.tw/products/278283463-usb-to-dc-booster-cable-5v-to-9v-12v-step) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-10-04*