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KEFEYA S2 Triple Laptop Screen Extender,14” Triple Screen Laptop Monitor Extender, 1080P FHD Portable Monitor for 13“-17.3” Laptops, HDMI/USB-A/USB-C for Mac, Windows, Chrome and Switch, Plug and Play

Name: KEFEYA S2 Triple Laptop Screen Extender,14” Triple Screen Laptop Monitor Extender, 1080P FHD Portable Monitor for 13“-17.3” Laptops, HDMI/USB-A/USB-C for Mac, Windows, Chrome and Switch, Plug and Play
Brand: KEFEYA
Price: 178.99 USD
Availability: InStock

$178.99

$359.99

-50%

class SpzCustomDiscountFlashsale extends SPZ.BaseElement { constructor(element) { super(element); this.xhr_ = SPZServices.xhrFor(this.win); this.getFlashSaleApi = "\/api\/storefront\/promotion\/flashsale\/display_setting\/product_setting"; this.timer = null; this.variantId = "69e69b7a-9b23-4102-b1d5-4c05d5431eeb"; // 促销活动数据 this.flashsaleData = {} } isLayoutSupported(layout) { return layout == SPZCore.Layout.CONTAINER; } buildCallback() { this.templates_ = SPZServices.templatesForDoc(); this.viewport_ = this.getViewport(); // 挂载bind函数解决this指向问题 this.render = this.render.bind(this); this.resize = this.resize.bind(this); this.switchVariant = this.switchVariant.bind(this); } mountCallback() { // 获取数据 this.getData(); this.element.onclick = (e) => { const cur = this.win.document.querySelector(".app_discount_flashsale_desc"); if (this.flashsaleData.product_setting.is_redirection && appDiscountUtils.inProductBody(this.element) && e.target !== cur) { this.win.open(`/promotions/discount-default/${this.flashsaleData.discount_info.id}`); } } // 绑定 this.viewport_.onResize(this.resize); // 监听子款式切换，重新渲染 this.win.document.addEventListener('dj.variantChange', this.switchVariant); } unmountCallback() { // 解绑 this.viewport_.removeResize(this.resize); this.win.document.removeEventListener('dj.variantChange', this.switchVariant); // 清除定时器 if (this.timer) { clearTimeout(this.timer); this.timer = null; } } resize() { if (this.timer) { clearTimeout(this.timer) this.timer = null; } this.timer = setTimeout(() => { this.render(); }, 200) } switchVariant(event) { const variant = event.detail.selected; if (variant.product_id == '15eb442e-f9ee-4f6c-bf34-2f6e7f580ca3' && variant.id != this.variantId) { this.variantId = variant.id; this.getData(); } } getData() { const reqBody = { product_id: "15eb442e-f9ee-4f6c-bf34-2f6e7f580ca3", product_type: "default", variant_id: this.variantId } this.flashsaleData = {}; this.win.fetch(this.getFlashSaleApi, { method: "POST", body: JSON.stringify(reqBody), headers: { "Content-Type": "application/json" } }).then(async (response) => { if (response.ok) { this.flashsaleData = await response.json(); this.render(); } else { this.clearDom(); } }).catch(err => { this.clearDom(); }); } clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } render() { this.templates_ .findAndRenderTemplate(this.element, { isMobile: appDiscountUtils.judgeMobile(), isRTL: appDiscountUtils.judgeRTL(), inProductDetail: appDiscountUtils.inProductBody(this.element), flashsaleData: this.flashsaleData, image_domain: this.win.SHOPLAZZA.image_domain, }) .then((el) => { this.clearDom(); this.element.appendChild(el); }) } } SPZ.defineElement('spz-custom-discount-flashsale', SpzCustomDiscountFlashsale);

/** * 优惠码组件模型类 * 处理优惠码的显示和交互逻辑 */ class SpzCustomDiscountCodeModel extends SPZ.BaseElement { constructor(element) { super(element); // 复制按钮和内容的类名 this.copyBtnClass = "discount_code_btn" this.copyClass = "discount_code_value" } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } buildCallback() { // 初始化服务 this.action_ = SPZServices.actionServiceForDoc(this.element); this.templates_ = SPZServices.templatesForDoc(this.element); this.xhr_ = SPZServices.xhrFor(this.win); } /** * 渲染优惠码组件 * @param {Object} data - 渲染数据 */ doRender_(data) { return this.templates_ .findAndRenderTemplate(this.element, Object.assign(this.getDefaultData(), data) ) .then((el) => { this.clearDom(); this.element.appendChild(el); // 绑定复制代码功能 this.copyCode(el, data); }); } /** * 获取渲染模板 * @param {Object} data - 渲染数据 */ getRenderTemplate(data) { const renderData = Object.assign(this.getDefaultData(), data); return this.templates_ .findAndRenderTemplate(this.element, renderData) .then((el) => { this.clearDom(); return el; }); } /** * 清除DOM内容 */ clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } /** * 获取默认数据 * @returns {Object} 默认数据对象 */ getDefaultData() { return { isMobile: appDiscountUtils.judgeMobile(), isRTL: appDiscountUtils.judgeRTL(), image_domain: this.win.SHOPLAZZA.image_domain, copyBtnClass: this.copyBtnClass, copyClass: this.copyClass } } /** * 复制优惠码功能 * @param {Element} el - 当前元素 */ copyCode(el) { const copyBtnList = el.querySelectorAll(`.${this.copyBtnClass}`); if (copyBtnList.length > 0) { copyBtnList.forEach(item => { item.onclick = async () => { // 确保获取正确的元素和内容 const codeElement = item.querySelector(`.${this.copyClass}`); if (!codeElement) return; // 获取纯文本内容 const textToCopy = codeElement.innerText.trim(); // 尝试使用现代API，如果失败则使用备用方案 try { if (navigator.clipboard && navigator.clipboard.writeText) { await navigator.clipboard.writeText(textToCopy); } else { throw new Error('Clipboard API not available'); } // 显示复制成功提示 this.showCopySuccessToast(textToCopy, el); } catch (err) { console.error('Modern clipboard API failed, trying fallback...', err); // 使用备用复制方案 this.fallbackCopy(textToCopy, el); } const discountId = item.dataset["discountId"]; // 是否跳转落地页配置 const redirection = item.dataset["redirection"] === "true"; // 跳转到落地页 if (redirection && appDiscountUtils.inProductBody(this.element)) { this.win.open(`/promotions/discount-default/${discountId}`); } } }) } } /** * 使用 execCommand 的复制方案 * @param {string} codeText - 要复制的文本 * @param {Element} el - 当前元素 */ fallbackCopy(codeText, el) { const textarea = this.win.document.createElement('textarea'); textarea.value = codeText; // 设置样式使文本框不可见 textarea.style.position = 'fixed'; textarea.style.left = '-9999px'; textarea.style.top = '0'; // 添加 readonly 属性防止移动端虚拟键盘弹出 textarea.setAttribute('readonly', 'readonly'); this.win.document.body.appendChild(textarea); textarea.focus(); textarea.select(); try { this.win.document.execCommand('copy'); // 显示复制成功提示 this.showCopySuccessToast(codeText, el); } catch (err) { console.error('Copy failed:', err); } this.win.document.body.removeChild(textarea); } /** * 创建 Toast 元素 * @returns {Element} 创建的 Toast 元素 */ createToastEl_() { const toast = document.createElement('ljs-toast'); toast.setAttribute('layout', 'nodisplay'); toast.setAttribute('hidden', ''); toast.setAttribute('id', 'discount-code-toast'); toast.style.zIndex = '1051'; return toast; } /** * 挂载 Toast 元素到 body * @returns {Element} 挂载的 Toast 元素 */ mountToastToBody_() { const existingToast = this.win.document.getElementById('discount-code-toast'); if (existingToast) { return existingToast; } const toast = this.createToastEl_(); this.win.document.body.appendChild(toast); return toast; } /** * 复制成功的提醒 * @param {string} codeText - 要复制的文本 * @param {Element} el - 当前元素 */ showCopySuccessToast(codeText, el) { const $toast = this.mountToastToBody_(); SPZ.whenApiDefined($toast).then(toast => { toast.showToast("Discount code copied !"); this.codeCopyInSessionStorage(codeText); }); } /** * 复制优惠码成功后要存一份到本地存储中，购物车使用 * @param {string} codeText - 要复制的文本 */ codeCopyInSessionStorage(codeText) { try { sessionStorage.setItem('other-copied-coupon', codeText); } catch (error) { console.error(error) } } } // 注册自定义元素 SPZ.defineElement('spz-custom-discount-code-model', SpzCustomDiscountCodeModel);

/** * Custom discount code component that handles displaying and managing discount codes * @extends {SPZ.BaseElement} */ class SpzCustomDiscountCode extends SPZ.BaseElement { constructor(element) { super(element); // API endpoint for fetching discount codes this.getDiscountCodeApi = "\/api\/storefront\/promotion\/code\/list"; // Debounce timer for resize events this.timer = null; // Current variant ID this.variantId = "69e69b7a-9b23-4102-b1d5-4c05d5431eeb"; // Store discount code data this.discountCodeData = {} } /** * Check if layout is supported * @param {string} layout - Layout type * @return {boolean} */ isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } /** * Initialize component after build */ buildCallback() { this.templates_ = SPZServices.templatesForDoc(); this.viewport_ = this.getViewport(); // Bind methods to maintain context this.render = this.render.bind(this); this.resize = this.resize.bind(this); this.switchVariant = this.switchVariant.bind(this); } /** * Setup component when mounted */ mountCallback() { this.getData(); // Add event listeners this.viewport_.onResize(this.resize); this.win.document.addEventListener('dj.variantChange', this.switchVariant); } /** * Cleanup when component is unmounted */ unmountCallback() { this.viewport_.removeResize(this.resize); this.win.document.removeEventListener('dj.variantChange', this.switchVariant); // 清除定时器 if (this.timer) { clearTimeout(this.timer); this.timer = null; } } /** * Handle resize events with debouncing */ resize() { if (this.timer) { clearTimeout(this.timer) this.timer = null; } this.timer = setTimeout(() => { if (appDiscountUtils.inProductBody(this.element)) { this.render(); } else { this.renderSkeleton(); } }, 200); } /** * Handle variant changes * @param {Event} event - Variant change event */ switchVariant(event) { const variant = event.detail.selected; if (variant.product_id == '15eb442e-f9ee-4f6c-bf34-2f6e7f580ca3' && variant.id != this.variantId) { this.variantId = variant.id; this.getData(); } } /** * Fetch discount code data from API */ getData() { if (appDiscountUtils.inProductBody(this.element)) { const reqBody = { product_id: "15eb442e-f9ee-4f6c-bf34-2f6e7f580ca3", variant_id: this.variantId, product_type: "default", } if (!reqBody.product_id || !reqBody.variant_id) return; this.discountCodeData = {}; this.win.fetch(this.getDiscountCodeApi, { method: "POST", body: JSON.stringify(reqBody), headers: { "Content-Type": "application/json" } }).then(async (response) => { if (response.ok) { let data = await response.json(); if (data.list && data.list.length > 0) { data.list[0].product_setting.template_config = JSON.parse(data.list[0].product_setting.template_config); // Format timestamps to local timezone const zone = this.win.SHOPLAZZA.shop.time_zone; data.list = data.list.map(item => { if(+item.ends_at !== -1) { item.ends_at = appDiscountUtils.convertTimestampToFormat(+item.ends_at, zone); } item.starts_at = appDiscountUtils.convertTimestampToFormat(+item.starts_at, zone); return item; }); } this.discountCodeData = data; this.render(); } else { this.clearDom(); } }).catch(err => { console.error("discount_code", err) this.clearDom(); }); } else { this.renderSkeleton(); } } /** * Clear component DOM except template */ clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } /** * Render discount codes with formatted dates */ render() { // Render using discount code model SPZ.whenApiDefined(document.querySelector('#spz_custom_discount_code_model')).then(renderApi => { renderApi.doRender_({ discountCodeData: this.discountCodeData }) }).catch(err => { this.clearDom(); }) } renderSkeleton() { // Render template for non-product pages this.templates_ .findAndRenderTemplate(this.element, { isMobile: appDiscountUtils.judgeMobile() }) .then((el) => { this.clearDom(); this.element.appendChild(el); }) .catch(err => { this.clearDom(); }); } } // Register custom element SPZ.defineElement('spz-custom-discount-code', SpzCustomDiscountCode);

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KEFEYA TRI SCREEN MONITOR - EXCELLENT SPACE-SAVER!!

Highlight! Light, Thin, Bright - KEFEYA S2 leading the way in brightness among its peers!

Highlight! Fold with ease, strong and secure, resilient against impacts and minor drops.

14-inch 1080P FHD IPS Panel

Ultra-thin host design Lightweight for Travel

Plug and play, no driver installation required

Built-in two loud speakers

Product Details

Triple Your Productivity

Experience unparalleled ease with the driver-free, plug-and-play triple-screen laptop monitor extender by KEFEYA. Its broad compatibility across various devices, coupled with a 1080P FHD IPS panel, ensures stunning visuals and reduced eye fatigue. Seamlessly transform your laptop into a triple-screen workstation in seconds, fostering over 200% improved work efficiency.
Complete with versatile accessories and an innovative design featuring a built-in expandable kickstand, this lightweight, foldable extender amplifies on-the-go productivity, supporting multiple connection options for maximum convenience.

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Free delivery worldwide

What the Experts Say

Fits For 13”-17.3” Laptop

The KEFEYA S2 Portable Triple Laptop Monitor offers a seamless expansion of your workspace, functioning as both a secondary and tertiary monitor for Mac, laptops, or computers. Enhancing productivity, convenience, and multitasking efficiency, it delivers added screen real estate and the versatility to tailor your workspace to your specific requirements. Notably, the maximum stretch size it accommodates reaches up to 405mm.

Enhanced Compatibility

Our portable laptop extended screen boasts broad compatibility with a diverse array of devices and operating systems. This includes support for Intel, AMD, ARM processors, as well as popular platforms like Android, Windows, Mac, Chrome, Linux. It also caters to Type-C phones, PS4, Xbox, Switch, M1 Pro/Max, M2 Pro/Max, and various other processors

(KEFEYA S2 triple screen extender is not compatible with Macbook Air M1/M2/M3 chip and Macbook Pro M1/M2/M3 chip directly. Need extra USB Hub with MST.)

Plug And Play

Our product offers a seamless plug-and-play experience, eliminating the need for drivers. It includes 2 USB-A to USB-C cables, 2 USB-C to USB-C cables, and 1 HDMI to USB-C cable, ensuring convenient connectivity for a variety of devices. Get up and running without any installation hassles.

Enhance Visual Experience

Discover the world of immersive visuals with our 14-inch portable dual monitor, featuring a crystal-clear FHD 1080P resolution and a flicker-free display. Enjoy a wide viewing angle, a foldable design, a 178° IPS screen, and rich, vibrant colors. Plus, benefit from an anti-glare screen that reduces blue light damage and minimizes eye fatigue. Enhance your visual experience like never before.

Creative Designs

This three-screen notebook expansion solution provides a convenient 180° rotation function and is suitable for various scenarios such as meetings and presentations. It can easily share the same notebook screen content. Moreover, it is a driver-less Plug and Play device that supports multiple connection options, including USB-C and HDMI, to meet different device needs. Whether for work or entertainment, it can bring a more convenient multi-screen experience.

180° Rotation

Rotate the monitor 0 to 180° or take it down for your meetings, presentations to share the same laptop screen content.

Plug And Play

The triple laptop screen extender is driver-free and plug-and-play.

Compatibility of the Ports Groups

The KEFEYA portable laptop monitor extender supports two connection options: full featured USB-C cables (Type-C/ Thunderbolt 3/4) and HDMI to USB-C+USB-C to USB-A cables.

60HZ

Refresh Rate

IPS

178°

16: 9

Aspect Ratio

1000:1

Contrast Ratio

300 Nit

Brightness

16.7M

Display Color

72% NTSC

Color Gamut

60HZ

Refresh Rate

IPS

178°

16: 9

Aspect Ratio

1000:1

Contrast Ratio

300 Nit

Brightness

16.7M

Display Color

72% NTSC

Color Gamut

Questions & Answers

Q: How to get a brighter screen?

Make sure we have torn off the screen protectors and our laptop have enough power or it has been connected to power supply, then try to power the monitors from an external power supplies. The next step is trying to increase both of the "Backlight" and "Brightness" value through the multifunction key on top of each portable monitor's panel.

Q: Why does one monitor show "No Signal"?

There may be a connection failure or the computer port does not support video output. Normally USB-A port can not output video signal directly, we need a HDMI HUB with MST if need transfer video signal by USB-A port. Generally, this happens because the screen is only connected to the Type-C cable, but the USB-C port of the laptop only supports the power supply function(not full-featured) and not the video signal function, so you only need to use the included HDMI to USB-C cable to connect to the portable screen to provide a video signal. Please contact for troubleshooting if the portable monitor always show "No Signal" after your several attempts.

Q: Is the KEFEYA laptop screen extender compatible with my device and operating system?

Yes, it is compatible with a wide range of devices and operating systems, including Intel, AMD, ARM, Android, Windows, Mac, Chrome, Linux, Type-C phones, PS4, Xbox, Switch, M1 Pro/Max, M2 Pro/Max, and other processors. Please note that it is not compatible with M1 and M2 chips.

Q: How To Connect?

Each portable screen of KEFEYA S2 requires both power and a video signal in order to function: Power can be supplied via either the laptop's USB-A or USB-C ports, video signal is carried through the laptop's HDMI or full-featured USB-C port. With laptop's full function USB-C port can transmit power and video signals, you only need one cable to make one monitor of KEFEYA S2 work (2 screens connection requires 2 full-featured USB-C cables). 1.If your laptop has two full-featured Type-C(USB-C) ports, just use two USB-C to USB-C cables to connect two screens. One for each side. 2.If your laptop have one full-featured Type-C(USB-C) and HDMI port, then connect one screen with the included USB-C to USB-C cable, connect the other screen with the included HDMI to USB-C cable for display(video transmission) and USB-A to USB-C cable for power supply. 3 included cables are needed in this scenario. 3.If your laptop just has a HDMI port with some USB-A ports, you can buy a HDMI spliter or USB-A to HDMI adapter with MST to make you have two DHMI ports for 2 portable screen connection, then connect each portable extended screen with the included customized HDMI to USB-C cable for video transmission and USB-A port for power supply. Please feel free to contact KEFEYA to get an extra customized HDMI to USB-C cable in this case. 4.If your laptop has neither a full-featured Type-C(USB-C) port nor a HDMI port, then an extra USB 3.0 to Dual HDMI output adapter/docking station or hub with MST is needed. We need two HDMI ports to connect to tansmit data and video signal, one DHMI port to connet each portable screen, also need a USB-A to USB-C cable or external power source to power each portable screen, normally we need 4 ports (two HDMI and two USB-A) to connenct the portable tripple sceen monitor extender in this case.

Q: What kind of display quality does it offer?

The KEFEYA extender features a 1080P FHD IPS panel with 16.7 million colors, 300 nit brightness, 72% NTSC color gamut, and a 1:1000 contrast ratio, delivering clear and true-to-life visuals.

Q: Does it have any eye-friendly features?

Yes, it has a blue light filter, anti-glare technology, and adjustable brightness settings to prevent long-term eye fatigue.

Q: Can I extend my laptop to triple screens with this extender?

Absolutely. The KEFEYA extender can turn your laptop screen into a triple monitor setup, significantly enhancing your productivity.

Q: How can I adjust the display settings?

You can easily adjust settings such as RGB, brightness, and contrast using the buttons on the panel.

Q: Does it come with all the necessary accessories?

Yes, the package includes all the required accessories, including Type-C to Type-C cables for video and power, HDMI to Type-C cables for video, USB-C to USB-A cables for power, and a premium leather carry bag.

Q: Is it suitable for on-the-go use?

Yes, the KEFEYA S2 extender features a stable built-in expandable kickstand, is lightweight, and foldable, making it perfect for on-the-go productivity.

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