Chord Company DAC 64 Rare ((REDUCED))

Here is one of my Chord DAC 64 Reference FPGA Digital to Converter for sale. 
Wonderful sounding DAC even compared to my reference DAC costing 10 times more, like the Berkeley and Merging DACs I have.  A warm and smooth sounding DAC is all I would say. I had 3 of these DACs and keeping one of these as I recently acquired another. 
Also addressing this question to avoid multiple emails as my previous sale.  
Mk I vs Mk II questions. 
Chord never labeled the units differentiating them and the key difference are as follows:
The MkII has a power switch on the back, has one extra BNC digital input and some extra capability for older transports with high jitter problems.  
According to Rob when I spoke to him ages ago regarding this question, there is no sonic difference between them. I have both versions and made valuable time comparing them side by side and was not able to notice any difference.  
My asking price is firm and buyers will pay shipping and any possible duty and handling charges if crossing borders. 
Shipping to US is $80 and Canada is $65.