TIL, the SD card specification allows cards to report they support a maximum current consumption of… 65 amps
![Screenshot from a specification PDF, watermarked SD ASSOCIATION. A header says bits: 511:496, Description, width 16
The body of the description is "Maximum Current/Power Consumption
This field indicates total current/power consumption of the card including
enabled functions selected by the Function Selection ([399:376] bits) dependent on selected Bus Speed Mode.
The host should check the maximum current consumption by mode 0 operation and verify that it can supply the necessary current/power before executing mode 1 operation.
Especially in UHS-I or UHS-II mode, this field is related to Current Limit / Power
Limit setting. CMD6 mode 0 indicates the maximum current/power of a selected bus speed mode regardless of the setting of Current Limit / Power Limit. CMD6 mode 1 indicates the maximum current/power of a selected bus speed mode depending on the setting of Current Limit.
Definition for SD I/F Mode"
Followed by table of Value, Maximum Current (Power) Consumption at 3.6V
0: ERROR
1: 1ma (3.6mW)
2: 2mA (7.2mW)
3: 3mA (10.8mW)
...
65,535: 65,353mA (235926mW)](https://files.mastodon.social/media_attachments/files/114/956/409/891/581/037/original/e6aae500a511bd49.png)
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@reedmideke you will certainly not regret 65A through your SD card
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It never ceases to amaze me, the things you can destroy with 65 amps
Like there is very little in life that you could not make worse with careful application of 65 amps
