NI Ettus OCTOCLOCK-G CDA-2990 8-Channel Clock Distribution w/GPSDO for USRP

Description

Purchased brand new from National Instruments / Ettus Research. Used by a single person in a lab environment. Includes rack ears, power supply, and GPS antenna. The device is in excellent condition.
Part no. 782979-01 / 784306-01, current National Instruments price ,866.00.
Note: This is the
782979-01, which is functionally identical to the current
784306-01 - CDA-2990 model, except this device has the Ettus Research logo and the current model as the National Instruments logo as indicated here: https://kb.ettus.com/OctoClock_CDA-2990#:~:text=note%3A%20both%20of%20the%20cda-2990%20devices%20are%20functionally%20identical%20to%20the%20previous%20generation%20octoclock%2C%20which%20contained%20an%20ettus%20research%20logo.%20
Datasheet: https://www.ettus.com/wp-content/uploads/2019/01/Octoclock_Spec_Sheet.pdf
The current firmware on the device does not utilize the Ethernet port, but you can update the firmware to enable the Ethernet port by following the instructions here: https://files.ettus.com/manual/page_octoclock.html#detecting_new_unit
The OctoClock-G CDA-2990 is an upgraded version of the OctoClock CDA-2990, which includes an internal GPS-disciplined, oven-controlled crystal oscillator.  Like the OctoClock CDA-2990, the OctoClock-G CDA-2990 provides 8 PPS and 10 MHz outputs.
Overview
Fully Integrated Timing Source with 8-Way Distribution (10 MHz and 1 PPS)
Convenient Solution for Multi-Channel Synchronization
Use with MIMO Capable N-Series Devices for Coherent System
User Selection between Internal GPSDO Or External 10 MHz/1 PPS Source
Source detection with automatic switch over in case of failure or disconnect
19″ Rackmount – 1U
Locking Power Supply Connector
The OctoClock-G CDA-2990 is an affordable, high-accuracy timing reference and distribution system. This is a useful accessory for users that would like to build multi-channel systems that are synchronized to a common timing source. For example, the OctoClock-G CDA-2990 can be used to synchronize a system of USRP N210s for coherent operation.  This can enable phased array applications such as beamforming, super-resolution direction-finding, diversity combining, or MIMO transceiver design.
The OctoClock-G CDA-2990 distributes 10 MHz and 1 PPS signals generated from an internal GPS-disciplined, oven-controlled oscillator (GPSDO), or an external source.  The user can switch between these sources with a front-panel switch, and there is an automatic switch-over capability in case of failure or source disconnect.
The GPSDO serves as an accurate reference that can be synchronized to the GPS timing standard.  This allows developers to time-align multi-channel systems across the globe within ~50 ns.  When the GPSDO is not locked to the GPS constellation, it still provides 10 MHz/1 PPS signals, with an accuracy better than 25 ppb.