Is this an active or a passive cable?

I believe it is an active cable. Note the seller only offers the Thunderbolt 4 up to 2.0m which is the limit for the full 40Gbps on an active cable per Intel's specification. The vendor's advertisement suggests 40Gbps at all lengths they sell. I have had a good experience with my 2.0m cable; however, some screen flickering has occurred.

What kinds of speeds does this get when used on a Thunderbolt 3 device? Up to 40 gbps? Looking for a long cable that doesn't go down to 20 gbps.

This cable (in sizes up to 2 meters) does support USB 4, and Thunderbolt 3 or 4 data transfer speeds of up to 40GB/s. Keep in mind, other factors may impact your actual transfer rates. You'll only get up to 10 GB/s for USB 3.1. I have a couple of these OWC Thunderbolt cables and they work as advertised.

What is power delivery? Where is the power coming from and going to? Thanks.

The plug on one end to the plug on the other. In most cases, this will be from a Thunderbolt 4 enabled Apple computer to a Thunderbolt-enabled device, from a display to an external drive, to...some peripheral device, to which it will transfer power and data. The opposite, however can happen, since Apple laptops with Thunderbolt connections can be charged if this cable is connected to an appropriate charger and one of the T-bolt ports on the computer. This T-bold 4 cable works with the newest and fastest Thunderbolt-4 protocol that apple uses, but is backwards-compatible with any UBS-C or older Thunderbolt protocol device.

does this work to mirror display between two iMacs

Hello. Target display mode would be for iMacs between 2011-2014 which these macs have Thunderbolt 2 connections This would not be a cable you would use for target display.

ASIN	B09KTB326W
Best Sellers Rank	10,731 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,276 in USB Cables
Brand	OWC
Cable Type	Display Port, USB
Colour	Black
Compatible Devices	Laptop, MacBook Pro, iMac
Compatible Phone Models	Samsung Galaxy S10
Connectivity Technology	USB
Connector Gender	Female
Connector Type	USB Type C
Customer Package Type	coiled in protective tubing
Customer Reviews	4.7 out of 5 stars 1,541 Reviews
Data Transfer Rate	40 Gigabits Per Second
Ethernet Cable Category	Cat 8
Frequency	40 GHz
Included Components	OWC Thunderbolt 4 (USB-C) Cable 3 Year OWC Limited Warranty
Indoor Outdoor Usage	Indoor
Item Shape	Round
Item Weight	59 Grams
Item height	3 centimetres
Manufacturer	OWC
Maximum Current	5 Amps
Maximum Voltage	100 Volts
Model Name	[Intel Certified] 40Gbps Thunderbolt 4 Cable with 8K Video and 240W Charging - Backwards Compatible with USB4 Thunderbolt 3 Cable and USB-C - 3 Year Warranty
Model Number	OWCCBLTB4C1.0M
Number of Items	1
Number of Pins	24
Other Special Features of the Product	Data Transfer
Product Warranty	2 year manufacturer
Recommended Uses For Product	Pc
Specification Met	CSA, UL, Thunderbolt certified
UPC	810586036900
Unit Count	1.0 count
Wattage	240 watts

OWC [Intel Certified] 40Gbps Thunderbolt 4 Cable with 8K Video and 240W Charging - Backwards Compatible with USB4 Thunderbolt 3 Cable and USB-C - 3 Year Warranty (1.0M)

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