What is the conversion efficiency? In other words, how much power is lost through the cable?

The cable is not “active” so the cable does not convert power. It only tells the pd power supply that it needs the voltage it uses, the pd power supply then outputs the desired voltage. The conversion efficiency is in your pd power supply, which should be good since its converting from mains to the desired voltage, not mains to 5v then boost converting to 19v, etc. What the other responder is saying, you can calculate the loss in copper of this cable, but that is effectively nothing at this length.

Will it compatible with 15V 0.8A? (House of marley get togeter duo (not get togeter duo lol))

Yes, it is compatible with 15V 08A.

Do you make the reverse version of this cable, e.g. 12v input and usb c pd power output?

no . it only support 12V DC output.

Is this center positive?

Yes, Centerpositive on my USB_C pf 15 Volt cable

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モデル:SH-CP05A/SH-CP09A/SH-CP12A/SH-CP15A/SH-CP20A

モデル:SH-CP05A/SH-CP09A/SH-CP12A/SH-CP15A/SH-CP20A

Product ID: 754008604

Details

ケーブルタイプ
USB
コネクタタイプ
USB
ブランド
DSD TECH
対応デバイス
ノートパソコン
特徴
高速充電

⚡45W High-Power Delivery

🔌USB-C to DC 5.5x2.5mm Adapter

🛡️1-Year Warranty + Lifetime Support

18949CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up smarter, stay connected longer!

SEAMLESS USB C TO DC CONVERSION - Transforms USB Type-C PD output to a 12V DC 5.5x2.5mm interface for versatile device compatibility.
TRUSTED BY 100 000 GLOBAL USERS - Backed by DSD TECH’s decade-long expertise and a 4.4-star rating from hundreds of satisfied customers.
PEACE OF MIND WITH LIFETIME SUPPORT - Includes 1-year warranty and responsive technical assistance within 24 hours.
POWER YOUR DEVICES AT LIGHTNING SPEED - Supports up to 45W PD fast charging for efficient power delivery.
ENGINEERED FOR RELIABILITY SUSTAINABILITY - Crafted with eco-conscious design philosophy reducing waste and environmental impact.

The DSD TECH MagicConn SH-CP12A is a 120cm USB Type-C PD to DC 12V power cable delivering up to 45W fast charging. Designed for professionals needing reliable, eco-friendly power conversion from USB-C PD chargers to devices with 5.5x2.5mm DC input. Trusted globally with over 100,000 users, it offers a 1-year warranty and lifetime technical support, ensuring seamless, efficient charging for your laptop and compatible electronics.

Specifications

ASIN	B0B9FDZX7P
UPC	794251082204
おすすめ度	4.4 5つ星のうち4.4 (471) var
カラー	黒
ケーブルの形状	USB
コネクタ	USB
コネクタのオス/メス	オス-メス
ピンの数	24
ブランド名	DSD TECH
メーカー名	DSD TECH
メーカー型番	SH-CP12A
モデル番号	SH-CP12A
保証内容	1 Year Warranty Against Manufacturer Defects
原産国	中国
品目の長さ	120 センチメートル
対応アイテム	ノートパソコン
最大電圧	12 ボルト (DC)
消費電力（ワット数）	45 W
特別用途食品	USB-IF
特殊機能	高速充電
電源プラグ容量(A)	3 アンペア

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18949CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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