ARRI ALEXA XT

The following compatible memory cards, data rates, and recording time information has been extracted from the ARRI ALEXA XT website and/or camera manual. All information is subject to change, and all data rates and recording times are approximate values. Bit rates and recording times will vary depending on the content being captured.

ARRI ALEXA XT Compatible Memory Cards

The following table shows all compatible memory cards for the ARRI ALEXA XT camera.

Make Type Size GB Notes
Sony SxS Pro 64 SBP-64A SUP 3.0 or Later

SxS to XR Adapter 1
K2.48838.0
Pro+ 64 SBP-64B
SBP-64C
SBP-64D
128 SBP-128B
SBP-128C
SBP-128D
SanDisk Extreme
Pro
CFast
2.0
128 Model A/B SUP 3.0 or Later
CFast to XR Adapter 1
K2.48839.0
120 These cards will not allow recording  at max fps using ProRes 4444.
60
CODEX  Capture Drive CDX-3730 512 XR Capture Drive Docks require the Codex Production Suite to read XR and Capture Drives.

No Longer Supported

Make Type Size GB   Notes
Sony SxS PRO 8 SBP-8A SUP 3.0 or Later
SxS to XR Adapter 1
K2.48838.0
16 SBP-16A
32 SBP-32A

ARRI ALEXA XT Data Rates and Approximate Recording Times

The following table shows the approximate recording times of the ARRI ALEXA XT camera using various formats, memory card types and memory card sizes.

Codec Resolution Output
Resolution
Bit
Depth
Frame Rates
fps (With CODEX Drive)
Recording Time at 24fps [hh:mm:ss]
CODEX Drive 512GB CFast 128GB SxS 128GB
ProRes 422 16:09 HD 1920 x 1080 10 0.75 – 120 04:00:23 02:01:44 02:02:07
422 HQ 02:40:37 01:21:20 01:21:35
4444 12 01:47:13 00:54:17 00:54:27
4444 XQ 0.75 – 75 01:11:32 00:36:12 00:36:18
422 2K 2048 x 1152 10 0.75 – 60 03:30:31 01:46:37 01:46:56
422 HQ 02:20:37 01:11:12 01:11:25
4444 12 01:33:51 00:47:30 00:47:39
4444 XQ 01:02:36 00:31:40 00:31:46
422 3.2K 3164 x 1778 10 0.75 – 30 01:27:23 00:44:14 00:44:22
422 HQ 00:58:12 00:29:26 00:29:32
4444 12 00:38:51 00:19:38 00:19:42
4444 XQ 00:25:53 00:13:04
ARRIRAW 2.8K 2880 x 1620 12 0.75 – 120 00:46:01
ProRes 422 4:3 2K 2048 x 1536 10 0.75 – 48 02:38:07 01:20:04 01:20:19
422 HQ 01:45:33 00:53:26 00:53:36
4444 12 01:10:25 00:35:38 00:35:44
4444 XQ 00:46:57 00:23:44 00:23:49
ARRIRAW 2.8K 2880 x 2160 12 0.75 – 90 00:35:35
6:5 2.6K 2578 x 2160 0.75 – 96 00:39:32
ARRIRAW Open Gate 3.4K 3414 x 2198 0.75 – 75 00:29:21

Notes
*¹ ALEXA Classic cameras with the XR Module upgrade have the same maximum fps, except for Open Gate ARRIRAW, which is only available on ALEXA XT cameras.
*² ProRes is a variable bit rate codec. While it is usually close to the target data rate, the actual data rate can vary with image content.
*³ The ALEXA ProRes target data rate is the Apple target data rate plus metadata and other overhead.
*⁴ The remaining time indicated by the camera is always calculated based on the theoretical maximum data rate, not the target data rate, to be on the safe side.

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