Someone wrote that these only work for 1000Mbps;you would think that they would autoneg. 10/100/etc w/ the switch. Can someone else confirm?

I contacted TP-Link to ask them this question. Version 4 of the product supports 10/100/1000 auto-negotiation. Version 3 and older only supports gigabit.

will this give me better speed? i have 100ft cat6 away from modem and only get 14mb down but 80 when connected closer

Yes and better stability. Switch your cable to cat 7 for better speed. If your willing to spend the money, get a 3ft cat7 cable connect that cable from modem to this converter, get a FO cable for 100 ft run ( they are about $40 to $50 on eBay) connect the cable to a second converter at the end of the run and use a 3ft cat 7 cable to connect to your device. By the way on the back of the converter there is a switch that says auto and force, switch it to force. Auto means if your only going to connect this converter to another device and not to another converter. To learn more, go to YouTube for videos on the installation and use of this great product! Good luck!

What size is the dc barrel connector plug on the power adapter? presumably either 2.1 or 2.5 by 5.5 mm? thx!

I do not know. https://www.tp-link.com/us/products/details/cat-43_MC200CM.html This is the url to the device

Can I go ethernet from my router to multimode then back to ethernet after about 200m without out speed loss?

This media converter is rated for gigabit speed. Multimode fiber used at gigabit speed should be good to about 1,000 meters. So, 200m should be a piece of cake. HTH

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TP-Link MC200CM Gigabit Ethernet Multi-Mode Media Converter for Desktop (Black)

Product ID: 76662906

Details

Brand
TP-Link
Colour
Black
Compatible Devices
Desktop
Data Link Protocol
Gigabit
Data Transfer Rate
1000 Megabits
Hardware Interface
Ethernet

⚡1000Mbps full-duplex speed

📡0.5km multi-mode fiber reach

🔄Auto MDI/MDIX for seamless connection

NZ$132

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Description

🚀 Elevate your network game with lightning-fast fiber-to-copper conversion!

EXTENDED FIBER REACH - Cover up to 0.5 kilometers with multi-mode fiber—perfect for expanding your office network effortlessly.
VERSATILE DEPLOYMENT - Use standalone or integrate with TP-Link’s 19” chassis for scalable, professional setups.
BLAZING GIGABIT SPEED - Experience ultra-fast 1000Mbps full-duplex data transfer for flawless network performance.
PLUG PLAY SIMPLICITY - Auto MDI/MDIX support means zero cable hassles—just connect and go.
REAL TIME NETWORK INSIGHT - Front panel LED indicators keep you instantly informed of network status and activity.

The TP-Link MC200CM is a compact, desktop media converter that seamlessly bridges 1000BASE-SX multi-mode fiber and 1000BASE-T copper networks. Supporting full-duplex 1Gbps speeds and auto MDI/MDIX, it extends fiber connections up to 0.5km with easy-to-read LED status indicators. Ideal for professional environments seeking reliable, scalable network expansion without complexity.

Specifications

ASIN	B003AVRLZI
Are Batteries Included	No
Best Sellers Rank	#64,344 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #176 in Network Hubs
Brand	TP-Link
Colour	Black
Customer Reviews	4.4 4.4 out of 5 stars (226)
Date First Available	8 August 2012
Item Dimensions LxWxH	20.4 x 6.5 x 16.5 Centimeters
Item Height	6.5 Inches
Item Weight	408 g
Item Width	2.56 Inches
Item model number	MC200CM
Manufacturer	TP-Link
Product Dimensions	20.4 x 6.5 x 16.51 cm; 408.23 g
Series	MC200CM
Voltage	5 Volts

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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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NZ$132

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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