I am upgrading from a pcie nvme gen 2 to pcie nvme gen 4 ssd. is this duplicator compatible with gen 4?

I haven't tested it, but Gen 4 drives are fully backwards compatible in Gen 2 devices. I would say yes, but you'll have to test yourself.

Can i clone a 512 gb source to a 500 gb target? different brand has slightly different size.

A 500GB and a 512GB are the same drive - it's about how storage is calculated. On another note though, the destination drive must be the same size or larger than the source.

If i have 2 2tb nvme m.2 cards i just bought and i'm going to take out my 512. do i need to clone to both the new 2tb or just one?

I cloned a 512 to a 1 TB, no problem. Youll just have to resize the partition once you reinstall the new NVME. As for cloning both: it depends. Does your pc support raid on the nvme slots or no? If not, then.... no. You don't need to clone both. If it does support raid, then you probably should take advantage of it and clone the old image to both.

Can this also be used to erase/wipe drives?

The seller's answer is misleading without context. Yes, technically it CAN be used to erase/wipe drives, but that is not a native feature to this device. It is a cloner/dock, so you can use the dock functionality to connect to a PC and from there use a third party application to erase the drive. Seller should have specified, but it seems to me (I am a tad cynical by nature) that the seller purposefully didn't in order to increase interest in the product. Boo to you seller. Boo.

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ACASIS 20Gbps M.2 NVMe SSD Cloner & Docking Station, Dual-Bay Duplicator

Product ID: 192989150

Details

Brand
FREEGENE
Hardware Interface
USB Type C
Hardware Platform
PC
Material
Aluminum
Product Dimensions
3.31"L x x

⚡20Gbps blazing USB 3.2 Gen2x2 speed

❄️Aluminum heat dissipation for cool stability

🛠️Tool-free, effortless installation

€ 126.29

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Clone like a pro, cool like a boss.

DUAL BAY POWERHOUSE - Simultaneously duplicate two M.2 NVMe SSDs with PCIe M-Key support
LIGHTNING FAST CLONING - Clone up to 8TB NVMe SSDs in minutes without a PC
PLUG PLAY SIMPLICITY - No software, no drivers, no hassle—just one-click offline cloning
SLEEK ALUMINUM COOLING - Maximized heat dissipation keeps drives stable under pressure
SMART SSD HEALTH MONITORING - Supports S.M.A.R.T. & TRIM for optimized drive longevity when connected

The ACASIS 20Gbps M.2 NVMe SSD Cloner & Docking Station is a dual-bay, tool-free duplicator designed for ultra-fast offline cloning of NVMe SSDs up to 8TB. Featuring a robust aluminum alloy body for superior heat dissipation, it supports USB 3.2 Gen2x2 speeds up to 20Gbps and smart SSD health monitoring when connected to a PC. Perfect for professionals seeking efficient, reliable, and hassle-free SSD duplication without the need for additional software or computers.

Specifications

ASIN	B085T9MR9V
Best Sellers Rank	#142 in Enclosures
Brand	FREEGENE
Built-In Media	Blu-ray, DVD
Compatible Devices	Laptop
Connectivity Technology	USB
Customer Reviews	4.2 4.2 out of 5 stars (554)
Data Transfer Rate	10 megabytes_per_second
Enclosure Material	Aluminum
Hardware Interface	USB Type C
Hardware Platform	PC
Item Dimensions L x W x H	3.31"L x 1.93"W x 0.63"H
Item Weight	56 g
Manufacturer	FREEGENE
Memory Storage Capacity	8 TB
Mfr Part Number	M03
Model Number	M03
Number of Items	1
Supported Devices Quantity	2
UPC	705338038953 705338039110
Warranty Description	1 year manufacturer

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