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 SFP to RJ45 Fiber Media Converter | Fiber to Ethernet Converter

TP-Link MC200CM, Gigabit SFP to RJ45 Fiber Media Converter | Fiber to Ethernet Converter

Product ID: 1468725

Details

Brand
TP-Link
Color
Black
Compatible Devices
Desktop Laptop
Data Link Protocol
Ethernet IEEE
Data Transfer Rate
1000 Megabits
Hardware Interface
Ethernet

⚡1000Mbps Full-Duplex Speed

📡Up to 550m Fiber Range

🔌Auto MDI/MDIX Port Flexibility

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Description

🚀 Elevate your network game with fiber-fast connectivity!

EXTENDED FIBER REACH - Cover up to 550 meters with multi-mode fiber—perfect for sprawling office setups or data centers.
VERSATILE DEPLOYMENT - Works standalone or integrates effortlessly with TP-Link’s 19-inch chassis for scalable infrastructure.
BLAZING GIGABIT SPEED - Experience seamless 1000Mbps full-duplex data transfer for ultra-smooth network performance.
PLUG PLAY SIMPLICITY - Auto MDI/MDIX support means zero hassle with cable types—just connect and go.
REAL TIME NETWORK INSIGHT - Front panel LED indicators keep you instantly informed on connection status and activity.

The TP-Link MC200CM media converter bridges 1000BASE-SX fiber and 1000Base-T copper networks at full gigabit speed. Supporting multi-mode fiber up to 550 meters and featuring auto MDI/MDIX ports, it ensures flexible, high-performance connectivity with easy monitoring via LED indicators. Ideal for professional environments demanding reliable, scalable network solutions.

Specifications

ASIN	B003AVRLZI
Best Sellers Rank	#37 in Computer Networking Transceivers
Brand	TP-Link
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (234)
Date First Available	December 19, 2005
Item Dimensions LxWxH	8.03 x 2.56 x 6.5 inches
Item Weight	14.4 ounces
Item model number	MC200CM
Manufacturer	TP-Link
Power Source	Corded Electric
Product Dimensions	8.03 x 2.56 x 6.5 inches
Voltage	5 volts

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$57.82

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In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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TrustScore 4.5 | 7,300+ reviews

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