This is an active DisplayPort to VGA adapter as pictured. It will only go from a DisplayPort output to a VGA monitor input, not the other way around.
Full description from Startech:
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DISPLAYPORT TO VGA ADAPTER: DisplayPort
1.2 (HBR2) adapter connects a VGA display or projector supporting
2048x1280, 1920x1200 & 1920x1080 (1080p) at 60Hz; EDID & DDC
pass-through ensure compatibility between source & display | 3"
(8cm) attached cable
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COMPATIBILITY: Active digital to analog
converter supports DP or DP++ source w/ standard DP connector incl
workstations, desktops (AMD/Nvidia), laptops, small form factor
computers & docking stations
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CONNECT TO A PRIMARY OR SECONDARY
DISPLAY: Connect a VGA monitor or projector, or add a second display to
your workstation using the DP to VGA display adapter; Durable housing
makes it ideal for travel to & from office/home |Tested w/ VGA
cables up to 25'
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LATCHING DISPLAYPORT & SCREW
LOCKING VGA: Latching DP connector ensures a solid host connection |
Supports VGA screw locking cable to prevent cable from coming loose or
accidental disconnection | EMI shielding protects from line
noise/distortion
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EASY TO USE: With no software or
drivers required, the DP to VGA adapter converter works with any OS
including Windows, Ubuntu and macOS; DisplayPort male to VGA female
video adapter dongle
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