SD to CompactFlash Type I Adapter

Red CompactFlash-size adapter with an SD card opening, labelled Type I UDMA Extreme CF Adapter, on dark stone

SD to CompactFlash Card Adapter, Type I UDMA Converter

US $13.43 on AliExpress

Sold: 1,282Rating: 98% positive

Price checked Sep 18, 2026. It can change on AliExpress.

Sold and shipped by a seller on AliExpress, not by HiiGuy. How this works

This is a CompactFlash-shaped shell listed as a way to run a full-size SD card in a camera's CF Type I slot. It suits a DSLR from the CF era that still earns its keep.

Why it made our list

Rated 98% positive by AliExpress buyers.
Over 1,200 recent orders on AliExpress.
SD cards are cheap and easy to replace, which is the practical reason to put one in a CF body.

What the seller lists

An SD card opening in a CompactFlash Type I body.
Listed for MMC, SDHC and SDXC cards.
A UDMA marking.
Listed by the seller as a DSLR camera card reader and converter.

Good for

Keeping an older body shooting without hunting for CF cards, and for casual work where sustained write speed is not the limit. Adapters sit between the card and the camera, so speed and behaviour vary by body: test it before a job that matters.

Before you buy

Sold and shipped by an AliExpress seller, not by HiiGuy.
The current price and delivery time are shown on AliExpress.
Check your camera's CompactFlash slot type and the card standards the seller lists.