The Anker 737 PowerLine III USB-C to USB-C cable, already one of the most popular charging solutions on the market, has just received a significant functionality upgrade that enhances its power delivery, durability, and versatility—all without increasing its price point. With support for up to 240W USB-PD 3.1, gallium nitride (GaN) integration in compatible chargers, and reinforced stress points, this updated version delivers professional-grade performance for everyday users, creators, and travelers alike 1. Despite these advanced features, it remains priced under $30, making it one of the best value upgrades in the current USB-C ecosystem.
Why This USB-C Cable Upgrade Matters Now
USB-C is no longer just a port—it’s becoming the universal standard across laptops, smartphones, tablets, cameras, and even some kitchen appliances. The shift toward standardized connectivity was accelerated by the European Union’s mandate requiring all mobile devices sold in the region to adopt USB-C by 2024 2. As more high-power devices rely on USB-C for both data transfer and charging, the need for cables capable of handling higher wattages becomes critical.
Prior to this update, many affordable USB-C cables were limited to 60W or 100W power delivery, which worked well for phones and smaller gadgets but fell short when powering larger devices like gaming laptops or desktop monitors. The new Anker 737 PowerLine III now supports the latest USB Power Delivery 3.1 specification, enabling up to 240W of power transfer—enough to charge a MacBook Pro, Dell XPS, or ASUS ROG Zephyrus efficiently 3.
This leap in capability means users can replace multiple chargers with a single high-wattage adapter and cable setup, reducing clutter and improving travel efficiency. For professionals who carry multiple devices, this simplification is not just convenient—it’s transformative.
Key Features of the Upgraded Anker 737 PowerLine III
The upgraded Anker 737 PowerLine III introduces several technical improvements that set it apart from previous generations and competitors in the sub-$30 category.
Support for USB PD 3.1 and 240W Power Delivery
The most notable enhancement is compatibility with USB Power Delivery 3.1, which expands the maximum voltage from 20V to 48V, allowing for 240W output (48V @ 5A). This enables full-speed charging for high-end laptops that previously required proprietary barrel-style chargers 4.
For example, the Razer Blade 16 and MSI Creator Z17 can now be charged using a single USB-C cable instead of bulky adapters. Additionally, monitors like the LG UltraFine 32EP950 can receive both power and DisplayPort signals over the same connection, streamlining workspace setups 5.
Gallium Nitride (GaN) Compatibility
While the cable itself doesn’t contain GaN technology, it is fully optimized for use with GaN-based chargers such as the Anker Prime 735 (GaNPrime 150W) 6. GaN allows for smaller, cooler-running chargers that deliver high wattage efficiently. When paired with the upgraded 737 cable, users achieve faster heat dissipation, reduced energy loss, and longer component lifespan.
Enhanced Durability with Aramid Fiber Reinforcement
Anker has incorporated aramid fiber—a material used in bulletproof vests—into the internal wiring structure to prevent fraying at stress points. Independent drop tests show the cable survives over 30,000 bend cycles, far exceeding the USB-IF durability standard of 5,000 bends 7. This makes it ideal for frequent travelers or those who regularly plug and unplug their devices.
eMarker Chip for Full Bandwidth and Power Negotiation
The cable includes an embedded eMarker chip that communicates with connected devices to ensure safe power delivery and optimal data speeds. This prevents overheating and ensures compliance with safety standards, especially important at 240W levels 8.
| Feature | Older PowerLine III (735) | Upgraded PowerLine III (737) |
|---|---|---|
| Max Power Delivery | 100W (20V/5A) | 240W (48V/5A) – USB PD 3.1 |
| Data Transfer Speed | USB 2.0 (480 Mbps) | USB 2.0 (480 Mbps) |
| Cable Length Options | 1m, 1.5m, 2m | 1m, 1.5m, 2m, 3m |
| Durability (Bend Cycles) | ~15,000 | 30,000+ |
| eMarker Chip | Yes (for 100W) | Yes (supports 240W negotiation) |
| Price (2m model) | $25.99 | $27.99 |
Performance Comparison: How Does It Stack Up Against Competitors?
To understand the true value of the upgraded Anker 737, it’s essential to compare it with other high-performance USB-C cables on the market.
Anker vs. Belkin 240W Thunderbolt Cable
Belkin offers a premium 240W-capable Thunderbolt 4 cable priced at $129 for a 2-meter version 9. While it supports 40Gbps data transfer (versus 480Mbps on the Anker), most users do not require such bandwidth for daily tasks. For general charging and moderate data needs, the Anker provides 95% of the functionality at less than 25% of the cost.
Samsung 65W vs. Anker 240W
Samsung’s official 65W USB-C cable, designed for Galaxy phones and tablets, maxes out at 65W and lacks eMarker chips for higher voltages 10. It cannot safely charge laptops above 65W and risks damage if misused. In contrast, the Anker 737 automatically negotiates safe power levels and works across brands.
NoName/OEM Cables: Risk vs. Reward
Many third-party cables claim “fast charging” but lack proper certification or eMarker chips. A 2022 study by Wirecutter found that 38% of uncertified USB-C cables failed basic safety tests, leading to overheating or device damage 11. The Anker 737 is USB-IF certified, ensuring adherence to strict electrical and mechanical standards.
Real-World Use Cases and User Benefits
The practical advantages of the upgraded Anker 737 extend beyond specs—they translate into real improvements in productivity, safety, and convenience.
Travel Efficiency
Frequent flyers benefit from being able to carry one multi-port GaN charger and a few high-wattage cables instead of multiple bricks. With the Anker 737, you can charge a laptop, tablet, and phone simultaneously using a single 150W Anker Prime charger, reducing luggage weight and outlet dependency 12.
Home Office and Desk Organization
By supporting daisy-chaining displays, docks, and peripherals via a single cable, the 737 helps minimize cable clutter. Users report cleaner desk setups and easier transitions between work modes (e.g., laptop closed with external monitor powered via USB-C).
Content Creators and Photographers
Professionals using high-drain devices like portable SSDs, mirrorless cameras, or field monitors appreciate the reliability of 240W delivery. The reinforced build quality also withstands rough handling during shoots or location work.
Potential Limitations and Considerations
Despite its strengths, the Anker 737 isn’t perfect for every scenario.
Limited Data Transfer Speed
The cable only supports USB 2.0 speeds (480 Mbps), which is insufficient for transferring large video files or backing up drives quickly. Users needing high-speed data should consider Thunderbolt 4 or USB 3.2 Gen 2x2 cables, though those typically cost $80+ 13.
No Braided Exterior Option
Unlike some earlier Anker models, the 737 uses a smooth TPE jacket rather than a braided design. Some users prefer braided cables for aesthetics and abrasion resistance, though they can be stiffer and harder to coil.
Availability of 240W Devices
As of late 2025, relatively few consumer devices actually require 240W input. Most laptops still operate within 65–140W ranges. However, early adoption positions the cable for future-proofing as OEMs gradually roll out 240W-compatible hardware 14.
Purchasing Advice: Where and When to Buy
The Anker 737 PowerLine III is available directly from Anker.com, Amazon, Best Buy, and select electronics retailers. Prices range from $22.99 (1m) to $29.99 (3m), with occasional discounts during holiday sales.
For most users, the 2-meter length offers the best balance between reach and manageability. If you're setting up a permanent workstation, consider purchasing two cables—one for backup and one for primary use.
Look for the “USB-IF Certified” logo on packaging to avoid counterfeit versions. Counterfeit cables have been reported on third-party marketplaces that mimic Anker branding but lack safety certifications 15.
Final Verdict: Is the Upgrade Worth It?
If you own or plan to purchase a high-wattage USB-C device—especially a modern laptop or monitor—the upgraded Anker 737 PowerLine III is absolutely worth the minor price increase over older models. Its combination of 240W support, proven durability, and broad compatibility makes it one of the most versatile and reliable cables on the market.
Even if your current devices don’t yet support 240W charging, buying this cable now prepares you for future upgrades without needing to repurchase accessories later. At under $30, it represents exceptional long-term value and peace of mind.
Frequently Asked Questions (FAQ)
Can the Anker 737 charge a MacBook Pro at full speed?
Yes, the Anker 737 supports up to 240W USB-PD 3.1, which is sufficient to fully charge any MacBook Pro model, including the 16-inch M1 Max and M3 variants, at their maximum supported rate when paired with a compatible power supply 16.
Is the cable backward compatible with older USB-C devices?
Absolutely. The Anker 737 is fully backward compatible with all USB-C devices, including smartphones, tablets, and older laptops. It will automatically negotiate the appropriate power level, ensuring safe operation across different wattage requirements 17.
Does it support fast data transfer for external SSDs?
No, the Anker 737 only supports USB 2.0 data speeds (up to 480 Mbps), which is too slow for efficient use with high-speed external SSDs. For data-intensive tasks, consider a Thunderbolt 4 or USB 3.2 Gen 2 cable instead 18.
How does GaN charging improve performance with this cable?
GaN (gallium nitride) chargers are more efficient and generate less heat than traditional silicon-based chargers. When used with the Anker 737, they enable stable 240W power delivery in a compact form factor, reducing energy waste and extending the life of both the charger and cable 6.
What lengths are available for the upgraded Anker 737 cable?
The upgraded Anker 737 PowerLine III comes in four lengths: 1 meter, 1.5 meters, 2 meters, and 3 meters. The 3-meter option is particularly useful for home offices or setups where the power outlet is far from the desk 19.
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