Free answer for DJI drone pilots
How many minutes of 4K drone video fit on a 64, 128 or 256 GB card?
Minutes = card size in GB × 8,000 ÷ (bitrate in Mbps × 60). At 150 Mbps, the maximum DJI lists for the Mini 4 Pro, a 128 GB card holds 128 × 8,000 ÷ 9,000 = about 113.8 minutes, so plan with about 113 minutes or 1 h 53 min. Because the drone does not always record at its maximum bitrate and a formatted card shows a little less than its label, treat the figure as a planning estimate and round it down.
Last updated 2026-11-11.
Minutes per card at 150 Mbps
32 GB: about 28 minutes (28.4). 64 GB: about 56 minutes (56.9). 128 GB: about 113 minutes (113.8). 256 GB: about 227 minutes (227.6), almost 3 h 48 min. 512 GB: about 455 minutes (455.1), about 7 h 35 min.
Each figure is rounded down to the whole minute, because the last partial minute will not fit.
At other bitrates
128 GB at 100 Mbps: 128 × 8,000 ÷ 6,000 = about 170 minutes. 128 GB at 200 Mbps: 128 × 8,000 ÷ 12,000 = about 85 minutes. Halving the bitrate doubles the minutes; the card size scales the same way, so 256 GB holds twice what 128 GB holds at any bitrate.
How many flights is that
Divide the minutes by the minutes you actually record per flight, not by the flight time: if you record 15 of every flight's minutes at 150 Mbps, a 128 GB card covers 113 ÷ 15 = 7.5, so 7 full flights.
Which cards DJI lists
DJI's Mini 4 Pro spec page recommends V30 or V90, U3 microSD cards from 32 GB to 512 GB (for example Lexar 1066x, Kingston Canvas Go! Plus and React Plus, SanDisk Extreme PRO, Samsung EVO Plus) and lists exFAT as the file system. The bitrate maximum of 150 Mbps on the same page is the figure used above; the 100 and 200 Mbps rows are example values for other drones, not claims about a model.
Sources
Read on 2026-11-11. These pages change; if a line here no longer matches, the linked page wins.
Questions
How long can a 64 GB card record 4K on a Mini 4 Pro?
About 56 minutes at the 150 Mbps maximum DJI lists; longer if the drone writes below that maximum.
Is a 512 GB card supported on the Mini 4 Pro?
DJI's spec page lists 512 GB cards (Lexar 1066x and Samsung EVO Plus) among its recommended cards.
Does slow motion fill the card faster?
Only if it records at a higher bitrate; the size depends on bitrate and time, and DJI gives one 150 Mbps maximum for the Mini 4 Pro.
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