Nikon D4 - Manual (Page 61)

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* With large antenna at wireless LAN access point. Range varies with
signal strength and presence or absence of obstacles.
† Maximum logical data rates according to IEEE standard. Actual rates may
differ.
Data transfer protocols PTP-IP, ftp, sftp
Power consumption 1.2 W maximum
Operating environment
Temperature: 0–40 °C/32–104 °F
Humidity: Less than 85% (no condensation)
Weight Approximately 27 g/0.96 oz (body only)
Dimensions (W × H × D)
Approximately 32.0 mm × 41.5 mm × 30.0 mm
(1.3 in. × 1.7 in. × 1.2 in.)