What fits in each slot
| Slot | Formats | Interface | Workflow note |
|---|---|---|---|
| Slot 1 | CFexpress Type B or XQD | CFexpress / XQD | Preferred for high-data-rate capture and Nikon-listed RAW video media. |
| Slot 2 | SD/SDHC/SDXC | UHS-I / UHS-II | Can be used for overflow, backup, separation, and in-camera copying. |
When faster media matters
Everyday recommendation
U3 SD or CFexpress/XQD rated at least 45 MB/s for Nikon's ordinary video guidance.
Demanding recommendation
A listed CFexpress Type B card for N-RAW or ProRes RAW HQ; faster 250 MB/s-class media is recommended for high frame size or rate.
Nikon publishes specific Type B card families for N-RAW 12-bit and ProRes RAW HQ 12-bit recording.
Plan the complete workflow
Capacity
The camera supports CFexpress Type B, XQD, SD, SDHC, and SDXC; confirm the exact model on Nikon's current list.
Reader
Use a CFexpress Type B/XQD-compatible reader for Slot 1 and UHS-II SD for Slot 2.
Three checks worth making
- High-resolution RAW video has narrower approved-media guidance.
- A dual-card backup is constrained by what each slot and file type can record.
- Reader support for XQD is not universal.
Verify the current requirement
StorageSift summarizes the manufacturer's documentation; firmware, card qualification, and recording options can change. Recheck the source for the exact mode and capacity you plan to use.
Nikon Z6III Reference Guide: approved memory cards ↗Source checked August 13, 2026