Data & backup planner
How much space does XAVC-I (Class 300) take?
XAVC-I (Class 300) stores a constant amount per frame (1.25 MB at UHD), so the rate scales exactly with pixels and frame rate. UHD at 25 fps: 113 GB per hour.
- Footage per day
- —
- Footage, whole shoot
- —
- Incl. all copies
- —
- Drives needed
- —
- Offload per day
- —
- Left after wrap
- —
- Per recording hour
- —
- Per day
- —
- Whole shoot
- —
- Data rate
- —
- 4 GB file holds
- —
Picture = the plan on the Footage tab.
- One file
- —
- All versions
- —
- Upload at full speed
- —
- Upload at 80 %
- —
Same runtime in every format. Platform figures are their recommendations, not limits.
Runs in your browser. Nothing you enter is sent anywhere.
XAVC-I (Class 300): GB per hour
Rates derived from the manufacturer’s published bitrates. Plan with the nominal rate: the card has to survive the busiest take, not the average one.
| Resolution | 24 fps | 25 fps | 30 fps | 50 fps | 60 fps |
|---|---|---|---|---|---|
| HD 1920 × 1080 | 27.0 GB | 28.1 GB | 33.8 GB | 56.3 GB | 67.5 GB |
| UHD 3840 × 2160 | 108 GB | 113 GB | 135 GB | 225 GB | 270 GB |
| 4K DCI 4096 × 2160 | 115 GB | 120 GB | 144 GB | 240 GB | 288 GB |
How long a card lasts
Minutes of recording per card (UHD 25 fps). The last column is the time a DIT needs to copy that card once to an NVMe SSD at a sustained 850 MB/s, plus a verification pass.
| Card | Recording time | Offload + verify |
|---|---|---|
| 256 GB | 2 h 17 min | 10 min |
| 512 GB | 4 h 33 min | 20 min |
| 1 TB | 8 h 53 min | 39 min |
| 2 TB | 17 h 47 min | 1 h 18 min |
XAVC-I (Class 300) next to its siblings
The same hour of footage in every variant of the family (UHD, 25 fps). The step to the next quality level is usually the cheaper decision than it looks: drives cost less than a reshoot, but every step also lengthens the offload.
| Codec | GB per hour | vs. XAVC-I (Class 300) | Offload of 1 h at 850 MB/s |
|---|---|---|---|
| XAVC-I (Class 300) | 113 GB | — | 2 min |
| XAVC-L | 45.0 GB | −60 % | 1 min |
Cameras that record XAVC-I (Class 300)
In our camera list: Sony Venice 2 (8.6K), Sony Venice (6K), Sony FX9, Sony FX6, Sony FX3, Sony Burano. The tool above has each of them as a preset, with the codecs and frame rates the body actually offers.
Frequently asked
How much storage does one hour of XAVC-I (Class 300) need?
In UHD at 25 fps: 113 GB. At 50 fps exactly double.
Why does my card show less space than its label?
Cards are labelled in decimal units (1 TB = 1,000,000,000,000 bytes); some operating systems count in binary units and show about 931 GB for a 1 TB card. The numbers on this page are decimal, like the label.