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USAMS U82 240W USB-C to USB-C Cable (1.2m) Overview
The USAMS U82 (model US-SJ580) is a high-performance USB-C to USB-C charging and data cable optimized for fast power delivery up to 240W via PD 3.1 EPR (Extended Power Range), making it suitable for demanding devices like MacBook Pro, iPad Pro, gaming laptops, or even some EVs. Launched in mid-2024, this 1.2m braided version balances portability and reach, with zinc alloy connectors for durability and an E-Marker chip for safe, intelligent power matching. It’s backward compatible with lower wattages (e.g., 100W/60W for phones) and supports fast data sync. As of November 14, 2025, it’s a value-driven pick for multi-device users, especially in Asia-Pacific markets, with strong stock on official sites and Amazon.
Key Specifications
Feature Details Power Output Up to 240W (48V/5A PD 3.1 EPR); backward compatible (e.g., 100W/60W PD) Data Transfer USB 2.0 at 480Mbps Connectors USB-C male to USB-C male (reversible) Cable Length 1.2m (also available in 2m) Build Zinc alloy shell + nylon braided exterior; multi-strand tinned copper core (low resistance); supports 10,000+ bends Compatibility PD-enabled USB-C devices (MacBook Air/Pro, iPad Pro/Air, iPhone 15/16, Samsung Galaxy S24/S25, Huawei/Xiaomi/OPPO laptops/phones, PS5 controller) Extras E-Marker smart chip for overheat/short-circuit protection; no LED indicator on base model Pros and Cons (Based on Reviews)
Pros Cons Exceptional 240W speed for laptops (0–80% in ~30 mins with compatible charger) USB 2.0 data limits large file transfers (no 10Gbps) Robust zinc alloy build resists kinks/pulls; braided for tangle-free use Slightly stiff initially (softens over time) Smart power matching avoids overcharging; wide protocol support (Apple/Samsung/Huawei) No video output (DisplayPort/Thunderbolt) Affordable for EPR tech; reliable in tests with minimal heat Shorter 1.2m may not suit desk setups (opt for 2m) What Reviewers Are Saying
- USAMS Official (2024): “Supports 48V/5A for true 240W—perfect for MacBooks; zinc alloy ensures anti-shedding durability.”
- Sunsky Users (2025): “Fast file sync at 480Mbps; multi-strand copper keeps charging stable even at max load—great value at $4.45 for 2m equivalent.”
- Amazon Feedback (Oct 2025): “Charges my iPad Pro lightning-fast; backward compatible with older phones—no issues after months of daily use.”



