News – Cnctcable

HDMI 2.1: Redefining the Future Standard for Display Connectivity

For over a decade, HDMI has maintained its dominance as the primary connection method for game consoles, personal computers, and external display adapters, thanks to its irreplaceable versatility. This is no coincidence — it transmits both video and audio signals through a single cable, supports the vast majority of mainstream resolutions and refresh rates on the market, and has continuously evolved through technological iterations, earning its reputation as a "versatile all-rounder" in the digital display realm. The arrival of HDMI 2.1 has pushed this standard to new heights. From Gradual...

The "Lifeline" of Foldable Devices: Technological Breakthroughs in Flexible CablesAs a professional who frequently disassembles foldable smartphones and laptops, I am well aware of the importance of flexible cables—they are the "lifeline" connecting the screen and motherboard in foldable devices. Once they break, the device becomes completely non-functional. Over the years, I have witnessed flexible cables evolve from being prone to frequent failures to being stable and durable, and the technological breakthroughs behind this transformation hold many insights. In the earliest foldable devices, ordinary flat cables were still used, which...

Fiber Optic Cables vs. Copper Cables: The Ultimate Trade-Off Between Transmission Speed and CostWhen designing network cabling or equipment connection solutions, choosing between fiber optic cables and copper cables essentially boils down to balancing "speed requirements" and "cost budgets." As a professional who has worked with both extensively, I know exactly where the trade-offs between these two cable types lie.First, the Showdown in Transmission SpeedAmong copper cables, the current mainstream Cat6a Ethernet cable has a maximum transmission rate of 10Gbps, but its transmission distance is limited to 100 meters. Beyond...

In Today’s Wireless-Pervasive World, Why Haven’t Audio Cables Been Phased Out?In an era where wireless technology dominates, audio cables still haven’t been phased out—and that’s because they hold irreplaceable advantages in sound quality, stability, and usability across specific scenarios. Here are the key reasons:Superior Sound QualityAudio cables transmit audio signals directly through physical wiring, resulting in minimal signal loss and more accurate reproduction of the original audio quality. By contrast, wireless audio transmission (via technologies like Bluetooth) faces inherent limitations and interference. It also requires signal processing and encoding, which...

Key Selection PointsThe HDMI version is crucial: Prioritize HDMI 2.1 cables. With a total bandwidth of up to 48Gbps, HDMI 2.1 easily supports ultra-high refresh rate outputs like 8K/60Hz and 4K/240Hz, delivering an extremely smooth visual experience for gamers. For example, in high-frame-rate racing games, ultra-high refresh rates make vehicle movement trajectories smoother, eliminating stuttering and motion blur. Additionally, it features VRR (Variable Refresh Rate), which dynamically adjusts the monitor’s refresh rate based on the game’s frame rate to prevent screen tearing, keeping visuals consistently clear and stable. Take Cyberpunk...

Clarify Your Needs: What Do You Need It for?Before choosing a Type-C cable, you must first clarify your usage needs. Different usage scenarios have vastly different performance requirements for the cable.Charging Only: If your only need is to charge a device, focus on charging power and compatibility. Ordinary mobile phones generally support a charging power of 20W-30W, so a Type-C cable that supports the corresponding Power Delivery (PD) protocol will suffice. For example, the iPhone 15 can quickly recharge with a 20W PD fast charge. For laptops or tablets, which...

What Is the Definition of a Cable?

Before formally explaining the definition of a cable, we can first imagine a scenario: when there is a power outage at home, the electrician comes to repair it, carrying a roll of wire wrapped in thick plastic on the outside, with visible copper cores inside — this is actually a type of cable. However, to understand it accurately, we need to first set aside its "specific appearance" and start from its "essential attributes" and "core functions" to break down and clarify the definition.First of all, let's present the most core...

Is HDMI 2.1 capable of 4K?

HDMI 2.1 fully supports 4K resolution and performs even better under 4K specifications.Specifically, HDMI 2.0 supports a maximum video transmission of 4K@60Hz, while HDMI 2.1 further improves on this by supporting 4K@120Hz and even higher frame rate 4K content. This means that when playing fast-moving images (such as competitive games, sports events), it can effectively reduce motion blur and smearing, delivering a smoother and clearer visual experience. In addition, HDMI 2.1 is also compatible with features like VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode) at 4K resolution,...

Parameters of Audio and Video Cables

The parameters of audio and video cables directly affect signal transmission quality (e.g., sound quality, image quality), stability, and applicable scenarios. Understanding these parameters helps select cables that match device requirements, avoiding performance waste or signal loss. Below is a detailed explanation from three dimensions: general parameters, exclusive parameters for audio cables, and exclusive parameters for video cables: I. General Parameters (Common to Both Audio and Video Cables) These parameters determine the basic performance and applicable environment of the cable: Cable Length Core impact: Too short a length limits device placement distance; excessive...

What is HDMI 2.1?

HDMI has been the mainstream connection for most game consoles, PCs, and external display adapters for well over a decade and with good reason. It's a fantastically versatile connector that offers support for some of the most popular resolutions and refresh rates, all while transferring video and audio over a single cable. And it's getting better all the time. HDMI 2.1 benefits are many and important. It marks the first time in a while that HDMI can compete with the more recent DisplayPort connection in just about every way. For a...

DisplayPort vs HDMI: Which is Better?

The two most popular cables for connecting source devices like game consoles, desktop computers, Blu-ray players, and set-top boxes to monitors and TVs are DisplayPort and HDMI. They’ve both been the most popular solutions for well over a decade too, and the latest generations of each connector type are unlikely to change that. They offer support for the latest and greatest specifications and features, including both 4K and 8K resolution, high refresh rates, a range of HDR standards, and 10-bit color, as well as compression technologies like display stream compression and chroma subsampling. But as much...

Does DisplayPort Carry Audio?

Yes, it does. DisplayPort is a popular alternative to where additional bandwidth is required, but it wouldn't be much of an option if it couldn't at least meet the same basic features. Audio transmission, as well as video transmission, is a major component of DisplayPort, making it a versatile and capable solution to transmit media from a source device, like a laptop or desktop PC, to a monitor. Does DisplayPort carry audio? It can do that and more. DisplayPort can carry a video source, audio, and some forms of data too....