Which model / generation Bolt Sidekick receiver do I have?

Summary

1st generation Bolt Sidekick

1st generation Bolt Sidekick

Identifying characteristics

Refer to the Quick Start Guide in this article.
Serial number: starts with "914" or "915" as the first through third digit of the 8 digit serial number; the serial number is present on a sticker on the chassis of each unit, and also able to be read through the Bolt Manager software.
On-device display: NO, but receiver has menu buttons to use an OSD menu on a connected monitor
Internal battery: NO
External antennas: NO
Fan: NO
USB 3.0 port / GRAB Engine video capture: NO
Physical appearance: receiver has a smooth metal body and a ridged ABS plastic antenna cap; SDI models have (1) SDI output.

Models

3G-SDI / HD-SDI / SD-SDI:

HDMI:

2nd generation Bolt Sidekick

Identifying characteristics

Refer to the Quick Start Guide in this article.
Serial number: starts with "954" as the first through third digit of the 8 digit serial number; the serial number is present on a sticker on the chassis of each unit, and also able to be read through the Bolt Manager software.
On-device display: NO, but receiver has menu buttons to use an OSD menu on a connected monitor
Internal battery: NO
External antennas: NO
Fan: NO
USB 3.0 port / GRAB Engine video capture: NO
Physical appearance: receiver has a ridged metal body with a ridged ABS plastic antenna cap; SDI models have (1) SDI output.

Models

3G-SDI / HD-SDI / SD-SDI: