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SmallRig Ultra-Slim Female HDMI Type A to Male Micro-HDMI Type D Adapter Cable

BH #SM3021 • MFR #3021
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SmallRig Ultra-Slim Female HDMI Type A to Male Micro-HDMI Type D Adapter Cable
Key Features
  • Female HDMI Type A on One End
  • Male Micro-HDMI Type D on Other End
  • 2 x 1/4"-20 Threads on Female End
  • Ultra-Slim Cable for up to 4K60 Video
Use an HDMI Type A cable with your camera cage or rig with this Ultra-Slim Female HDMI Type A to Male Micro-HDMI Type D Adapter Cable from SmallRig. The adapter cable features a female HDMI Type A connector on one end and a male Micro-HDMI Type D connector on the other end to fit a variety of cameras.
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SmallRig 3021 Overview

Use an HDMI Type A cable with your camera cage or rig with this Ultra-Slim Female HDMI Type A to Male Micro-HDMI Type D Adapter Cable from SmallRig. The adapter cable features a female HDMI Type A connector on one end and a male Micro-HDMI Type D connector on the other end to fit a variety of cameras.

The female end of the adapter cable features two 1/4"-20 threads to attach to a cage, bracket, or rig, and the threads measure 0.35" apart from center-to-center. Two screws are included to mount the adapter onto your rig. This flexible, ultra-slim PVC cable measures only 0.1" in diameter and measures 5.6" in length. Read more below about compatibility options.

Compatibility
Cameras with Micro-HDMI ports, such as Sony a7R IV, a7R III, a7 III, a7 II, a7R II, Fujifilm X-T2, X-T3, and others
Camera cages or L-brackets with two 1/4-20" threads that measure 0.35" (9mm) from center-to-center on the left side, such as SmallRig CCS2416, 2238, 2228, 2229, and others

SmallRig 3021 Specs

Material of Construction
PVC
Connector 1
Female HDMI Type A
Connector 2
Male Micro-HDMI Type D
Mounting
2 x 1/4"-20 Threads
Thread Spacing, Center-to-Center: 0.35" / 9 mm
Dimensions
5.6 x 1.3 x 0.5" / 141.1 x 33.2 x 11.8 mm
Weight
1.1 oz / 31 g
Packaging Info
Package Weight
0.1 lb
Box Dimensions (LxWxH)
4.2 x 3.9 x 1.4"

SmallRig 3021 Reviews

Must Have for Nikon ZR

By Víctor M.
Rated 5 out of 5
Date: 2026-03-04

It’s a simple but reliable accessory that keeps your rig clean and functional while protecting your camera’s HDMI port. A great addition for filmmakers and content creators who want a compact and dependable HDMI connection.

Do the job!

By Lean_Lon
Rated 5 out of 5
Date: 2025-01-28

I had one that came with the original camera housing (not SmallRig). After several uses, it broke, so I decided to buy this one from SmallRig. It works perfectly. It’s been through a lot already and still holds up like a champ! It’s an excellent price/quality option.

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