Did you mean: 40 X CD-ROM
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What does 40x mean on a CD?
This is the label from a Memorex combo CD/DVD drive. Each "X" number means X times 150KB for CDs and X times 1.39MB for DVDs.
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5060V - 40X CD-ROM Unit (Scsi) ; Type. N/A ; Accurate description. 4.8 ; Reasonable shipping cost. 5.0 ; Shipping speed. 5.0 ; Communication. 4.9 ...