Why won’t the screen turn on with only an HDMI or USB-A cable?

HDMI carries video and USB-A provides power. Both are needed for the display to work. If the display shows “No Signal” after connection, try reconnecting the HDMI cable.

Screen shows "No Signal" even with a Type-C cable. Why?

This means your laptop’s Type-C port only supports power (not video). Connect an HDMI cable to the extender’s dedicated HDMI port to provide video signal. That screen will now require two cables (Type-C for power + HDMI for video)

Why does the screen show "Power Saving Mode," flicker, or stay black?

Your laptop may not support powering three screens at once. Fix this by plugging a USB to Type-C cable from the extender's Type-C port into a 5V/2A power adapter for extra power.

Is this compatible with MacBook M1/M2/M3/M4/M4 Pro chips?

These chips support only two screens (including the laptop display). To add a third, use a compatible dock like the Kefeya H5-T (Search: B0DF7CG7MC).It can also convert a USB-A or non-full-function Type-C port into a video output source.

How can I get further help?

Find detailed steps in the user manual or click the seller’s name on the product page to message us directly. We’ll respond promptly—if you don’t hear back, you may have contacted the wrong support channel.

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KEFEYA ノートパソコン画面エクステンダー 14.2インチポータブルトリプルモニターフルHD IPSディスプレイ搭載ノートパソコン用モニターエクステンダー Mac/Windows/Chrome対応 13~17インチのノートパソコンに対応

KEFEYA ノートパソコン画面エクステンダー 14.2インチポータブルトリプルモニターフルHD IPSディスプレイ搭載ノートパソコン用モニターエクステンダー Mac/Windows/Chrome対応 13~17インチのノートパソコンに対応

Product ID: 726294379

Details

ブランド
KEFEYA
画面サイズ
14.2 インチ
画面表面の説明
光沢
縦横比
16:9
解像度
FHD 1080p

⚡Plug & Play with Type-C/HDMI/USB-A

🔄0~180° rotatable screen

🖥️14.2-inch Full HD IPS display

$755.55

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🚀 Triple your screen, triple your impact — work smarter, anywhere!

TRAVEL READY DURABILITY - Compact foldable design with premium carrying case ensures your mobile workstation stays protected and stylish.
VIVID FULL HD IPS DISPLAY - Experience crisp 1920x1080 resolution with wide viewing angles and true-to-life colors for flawless multitasking.
EXPAND YOUR WORKSPACE ANYWHERE - Transform any location into a triple-monitor powerhouse with a sleek 14.2-inch portable display.
EFFORTLESS SETUP ZERO DOWNTIME - Plug & play compatibility with all major OS and devices—no drivers, no hassle, just instant productivity.
ERGONOMIC COMFORT FOR LONG HOURS - Adjustable 0~90° tilt kickstand reduces neck and eye strain during marathon work sessions.

The KEFEYA 14.2-inch portable laptop screen extender offers a vibrant Full HD IPS display with 1920x1080 resolution and 180° rotation. Designed for mobile professionals, it supports plug-and-play connectivity via Type-C, HDMI, and USB-A across Windows, Mac, and gaming consoles. Its ergonomic tilt stand and compact foldable design make it ideal for travel, remote work, and multitasking on the go.

Specifications

ASIN	B0CPL3R2ZX
Amazon 売れ筋ランキング	パソコン・周辺機器 - 339,763位 ( パソコン・周辺機器の売れ筋ランキングを見る ) ディスプレイ - 6,765位
HDMIポート数	1
UPC	752692213274
USB2.0ポート数	1
USB3.0ポート数	3
USBポート数	3
resolution	FHD 1080p
おすすめ度	4.3 5つ星のうち4.3 (1,363) var
アスペクト比	16:9
カラー	ブラック
カラースクリーン機能付き	はい
コントラスト比	1500:1
コンポーネントアプトプット数	2
スクリーン表面の仕上げ	光沢
ディスプレイの種類	液晶
ディスプレイ方式	液晶
ディスプレイ最大解像度	1920 x 1080 ピクセル
ネイティブ解像度	1920x1080
ハードウェアインターフェイス	USB 2.0, USB 3.0タイプC, USB 3.1 タイプC
ピクセルピッチ	0.18
ブランド名	KEFEYA
メーカー名	Shenzhen Baijiayoupu Technology Co., Ltd.
リフレッシュレート	60 Hz
レンズマウントの種類	デスクマウント
互換デバイス	Type-C、HDMI、USB-A接続のデバイスと、Windows、Mac OS、Switch、PS4、Xbox Oneなどのオペレーティングシステムを備えています。
品目の寸法（D x W x H）	35.6奥行き x 20.8幅 x 4.1高さ cm
商品の用途	ビジネス
商品の追加説明1	ポータブル
商品の重量	2.77 キログラム
商品種別	女性用大人用大人のおもちゃ
型番	KEFEYA
形状	長方形プリズム。
応答時間	2 ミリ秒
画質向上テクノロジー	アイケアモード
画面サイズの単位	14.2 インチ
視野角	180 度
通信・接続インターフェース	DisplayPort

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$755.55

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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KEFEYA ノートパソコン画面エクステンダー 14.2インチ ポータブルトリプルモニター フルHD IPSディスプレイ搭載ノートパソコン用 モニターエクステンダー Mac/Windows/Chrome対応 13~17インチのノートパソコンに対応

Details

Details

Description

Specifications

Common Questions

KEFEYA ノートパソコン画面エクステンダー 14.2インチポータブルトリプルモニターフルHD IPSディスプレイ搭載ノートパソコン用モニターエクステンダー Mac/Windows/Chrome対応 13~17インチのノートパソコンに対応