Does an Ethernet splitter slow down speed?

Please NOTE: Equipped with a 1.2m/4ft USB charging cable, it can support charging and networking at the same time. CAN NOT be used without connection.

CableGeeker Ethernet Splitter High Speed, 100Mbps Ethernet Splitter 1 to 2 [2 Devices Simultaneous Networking], RJ45 Internet Splitter with USB Power

Ethernet Splitter 1 to 2 1000Mbps High Speed RJ45 LAN Splitter Adapter Gigabit Fast Internet CAT 5 5e 6 7 8 Network Cable Multi Port Splitter HUB for Home Office Business

Will using an Ethernet splitter or a router slow down wired internet speed? : r/buildapc

Installing a Splitter for Ethernet Cable: 5 Ways + Instructions

Ethernet Splitter: How to Split Ethernet? – VCELINK

Ethernet Switch vs. Hub vs. Splitter: What's the Difference? - Make Tech Easier

Ethernet Switch vs. Hub vs. Splitter: What's the Difference - ElectronicsHub

Does using an Ethernet splitter slow down speed? - Quora

Starlink Splitter: A Simplified Guide

NETGEAR 5-Port 10/100/1000 Gigabit Ethernet Unmanaged Switch Blue GS105NA - Best Buy

networking - Network speed slow on CAT5e cables - Super User

Intro to Cable Splitters: Their TV Setup Process

I need to split an ethernet cable to two computers, what are the advantages and disadvantages of using a hub, switch or router? Does it make much of a difference speed-wise for