National Instruments M Series User Manual page 2

Dimensions
6.250 (158.75)
5.877 (149.28)
3X Ø 0.142 (3.61)
0.373 (9.47)
0.000 (0.00)
0.516 (13.11)
0.000 (0.00)
NI USB-621x OEM User Guide
Figure 2 shows the dimensions of the USB-6211 OEM device.
Figure 2. USB-6211 OEM Dimensions in Inches (Millimeters)
Ø 0.130 (3.30)
5.372 (136.45)
2.582 (65.58)
0.489 (12.42)
0.373 (9.47)
0.433 (11.00)
0.063 (1.60)
0.091 (2.31)
Ø 0.144 (Drill Size 27) Recommended
Front Panel Hole Cutout for LED
2 ni.com