If i use it to connect a 4 port pci-e x4 usb 3.0 card adapter w/ 4 dedicated 5gbps channels w/sata power will i have separate channels and speed?

This adapter will take a 16x pcie device down to a single X1 pcie. Basically any pcie device used with this adapter will be reduce to a single pcie channel. Basically if the device even works, it will be at a reduced speed. I hope that all makes sense.

can this be used for a gaming laptop?

No. There isn't enough room in a laptop for the board.

Would this fit Into a Dell optiplex 745 desktop

The StarTech.com PCIe X1 to PCIe X16 will fit in any desktop computer with an available PCIe X1 slot; however, be aware that if you have a graphics card that has a big cooling shroud, I would recommend to move the graphics card to another PCIe X16 slot on the motherboard. In addition, I would keep in mind that this adopter is about 1inch high and installing any card in it, could be a bit taller for some cards.

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StarTech PCI Express X1 to X16 Low Profile Extension Adapter (PEX1TO162)

Product ID: 3258951

Details

Color
Red
Compatible Devices
Personal
Connector Type
PCIe slot
Item dimensions L x W x H
8.62 x 1.81 x
Specific Uses For Product
personal

⚡Full PCIe x16 lane support

🔗Seamless x1 to x16 slot compatibility

🖥️Low profile card mounting

S/.207

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In stock

Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Upgrade your rig without limits—power meets precision!

BUILT TO LAST - StarTech’s lifetime warranty guarantees reliability for your high-performance setup.
SPACE SAVING DESIGN - Low profile mounting ensures sleek builds without sacrificing expansion options.
PLUG PLAY SIMPLICITY - Effortless installation with a complete pass-through design supporting the latest PCIe standards.
UNLOCK FULL PC IE POWER - Experience true x16 lane speeds even from an x1 slot for maximum performance.
UNIVERSAL COMPATIBILITY - Fits low profile cards (x2 to x16) into standard x1 slots—no motherboard upgrade needed.

The StarTech PCI Express X1 to X16 Low Profile Extension Adapter (PEX1TO162) enables installation of low profile PCIe cards ranging from x2 to x16 into an x1 slot, maintaining full PCIe x16 lane speeds with a pass-through design. This compact, red adapter offers seamless compatibility and lifetime warranty, eliminating costly motherboard or card upgrades.

Specifications

ASIN	B0039XPS5W
Best Sellers Rank	#654 in Internal Computer Networking Cards
Brand	StarTech.com
Color	Red
Compatible Devices	Personal Computer, Server
Connector Type	PCIe slot connector
Customer Reviews	4.1 4.1 out of 5 stars (146)
External Testing Certification	CE, FCC
Item Dimensions	8.62 x 1.81 x 6.22 inches
Item Weight	0.01 kg
Manufacturer	StarTech.com
Mfr Part Number	PEX1TO162
Model Number	PEX1TO162
Number of Items	1
Number of Ports	2
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	personal
UPC	065030839143
Warranty Description	Lifetime

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