Microdrive Compatibility - Nikon D300 Complete Manual

Nikon doesn't recommend using a MK1 version of the
original IBM Microdrive in any of their cameras, though
versions of the 340MB drive manufactured after mid-2001
(indicated with a letter "D" at the end of the serial number)
should work fine, as that drive was modified to incorporate
changes that also appeared in the MK2 drives.
The Microdrive's history is very confusing, so here's a table
that tries to make sense of it all:

Microdrive Compatibility

Drive Size Serial #
170MB no D at end of SN
340MB no D at end of SN
170MB D at end of SN
340MB D at end of SN
512MB no 0xx* at end of SN
1GB no 0xx* at end of SN
512MB 0xx* at end of SN
1GB 0xx* at end of SN
2GB Hitachi all models
4GB Hitachi all models
6GB Hitachi all models
8GB Hitachi all models
* "xx" is any two alphabetic characters
** Anecdotal evidence suggests that they are compatible
Thom Hogan's Complete Guide to the Nikon D300
Microdrives are remarkably small
hard disk drives camouflaged in a
CompactFlash case. That means that
they have moving mechanisms inside
(other types of CompactFlash use
static memory chips and have no
moving parts).
Photos: Courtesy of International
Business Machines Corporation.
Unauthorized use not permitted.
D300 Compatible?
No
Probably**
Probably**
Probably**
Probably**
Probably**
Probably**
Yes (DSC-11000)
Yes (3K4-2)
Yes (3K4-4)
Yes (3K6)
Likely**
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