Furunos PSU012 is required to run an open array with a MFD8. The MFD 12 and MFDBB do not require this when using 3.5 ft. open array, DRS4A or the 4 ft. open array DRS6A. For the larger open array, DRS12A, 12KW 4 ft. or 6 ft. UHD marine "radar":https://technicalmarine.myshopify.com/pages/radar-explained antennas, the PSU012 is required for both the MFD8 and the MFD12, but not the MFDBB. If you ware buying a "NavNet 3D":https://technicalmarine.myshopify.com/blogs/navnet-3d system, we will make sure that a piece like this is not forgotten. We check every order to assure completeness. Be sure to give us a phone number so we can call if we spot inconsistencies. Cal us at 847-746-0100 with requirements. Furuno NavNet 3D is a great system, make sure you get the accesories and installation parts. TMS Technical Marine Support has the knowledge and expertise to supply all you marine electronics needs. <p>Furunos PSU012 is required to run an open array with a MFD8. The <span class="caps">MFD</span> 12 and <span class="caps">MFDBB</span> do not require this when using 3.5 ft. open array, DRS4A or the 4 ft. open array DRS6A. For the larger open array, DRS12A, 12KW 4 ft. or 6 ft. <span class="caps">UHD</span> marine <a href="https://technicalmarine.myshopify.com/pages/radar-explained">radar</a><br /> antennas, the PSU012 is required for both the MFD8 and the MFD12, but not the <span class="caps">MFDBB</span>.</p> <p>If you ware buying a <a href="https://technicalmarine.myshopify.com/blogs/navnet-3d">NavNet 3D</a> system, we will make sure that a piece like this is not forgotten. We check every order to assure completeness. Be sure to give us a phone number so we can call if we spot inconsistencies. Cal us at 847-746-0100 with requirements. Furuno NavNet 3D is a great system, make sure you get the accesories and installation parts. <span class="caps">TMS</span> Technical Marine Support has the knowledge and expertise to supply all you marine electronics needs.</p> 2008-02-18T08:05:09-06:00 furuno-psu012-power-supply 1512422 Supply, 3D 2008-02-18T08:05:09-06:00 2009-07-24T10:17:28-05:00 FURUNO 800.00 2008-02-18T08:05:09-06:00 manual 4082 3249182 continue 1 Default 1 679.00 1512422 PSU012 2009-11-16T11:46:09-06:00 2008-02-18T08:05:09-06:00 2920802 1 1512422 2008-04-29T05:09:53-05:00 http://cdn.shopify.com/s/files/1/0010/3452/products/aa1a.jpg?1258851352 Title