USB-6221 Datasheet, PDF (4/21 Pages) National Instruments Corporation – This document provides dimensions, pinouts, and information about the connectors, switch, LEDs

Figure 3 shows the dimensions of the USB-6225/6229/6255/6259 OEM
device.
6.950 (176.53)
4x 6.718 (170.63)
6.270 (159.26)
6.140 (155.96)
5.930 (150.62)
5.839 (148.31)
5.499 (139.67)
4X Ø 0.110 (2.79)
7X Ø 0.125 (3.18)
6.140 (155.96)
5.290 (134.37)
0.396 (10.06)
0.304 (7.72)
0.256 (6.50)
0.116 (2.95)
0.000 (0.00)
0.304 (7.72)
0.200 (5.08)
0.436 (11.07)
0.392 (9.96)
0.362 (9.19)
0.162 (4.11)
0.062 (1.57)
0.000 (0.00)
2X Ø 0.140 Cutout
in Panel for LEDs
Ø 0.330 Cutout in Panel
for Power Connector
0.609 (15.47)
0.515 (13.08)
0.442 (11.23)
Figure 3. USB-6225/6229/6255/6259 OEM Dimensions in Inches (Millimeters)
NI USB-622x/625x OEM User Guide
4
ni.com