GPS-N PLUS High-Precision Camera GPS Receiver Navigation Geotagging for Nikon D3100, D3200, D3300, D5000, D5100, D5200, D5300, D7000, D7100, D600, D610, D800, D810, D700, D750, D90, D4, D3 etc

Well, I gave it 5* although I had to return it because it did not work (didn't power up). However, on one hand, I have a good friend who has been using a gps unit like this for years without a problem (that's why I wanted one for myself). One the other hand, and that's even more important, Amazon's return/refund procedure is beyond easy (so to speak). Couldn't be better, faster, more efficient. Thanks.

For anyone who read L. Lief's review from Jan. 14, 2024, in which the advice is to get a specific Vello cable from B&H photo to replace the cable that comes with the GPS-N Plus unit, if it breaks:There are two such Vello cables for Nikon: the one that reviewer L. Lief showed is the FB-N1, which is for Nikon cameras that have a 10 pin connector; and the FB-N2, for Nikon cameras that have a Nikon DC-2 connector. The other end of both of these cables is described as a "USB mini-B, male" connector,” to plug into the USB mini-B port on the "GPS-N Plus High-Precision Camera GPS Receiver." This is also as it is described on the Vello website. But these will not work as a replacement for the cables that came with the Micnova GPS.Based upon L. Lief’s advice, after I bought the GPS-N Plus, I thought I'd buy the Vello cable appropriate for my Nikon D750, which is the FB-N2, to have as a spare cable in case the original cable broke. I am here to warn others that this Vello cable ("Vello FB-N2 FlashBoss Shutter Release Cable") is meant to be used specifically with the "Vello FlashBoss Shutter device" (intervelometer), and the "USB mini-B, male" connector on it is not a standard USB mini-B connector. The interior contains an additional row on contacts/pins which causes it to not fit into the GPS-N Plus's standard USB mini-B port. It is basically a proprietary connector, not a standard USB mini-B connector. B&H and Vello customer service have both confirmed that the FB-N2 cable is not a normal cable, but is a shutter cable only meant to be used with the Vello FlashBoss TTL Transceiver and select Nikon cameras.The Vello FB-N1 cable that L. Lief mentioned is also described as having a USB mini-B male connector would be the same, and not work for the GPS-N Plus as a replacement cable (perhaps L. Lief has since found this out, as he was "99.99%" sure it would work before he tried it - at least he might be able to use it with his other Vello equipment). So, take that into consideration before investing in the Vello cable as a replacement for the original cable included with the GPS-N unit.The maker, Micnova, apparently offers a replacement cable, but it gets mixed reviews at Amazon, and is not especially cheap ("See All Options" link says $37.00 currently from vendor Trade & Logistic Services). Click on "Visit Micnova Store" under the GPS-N Plus item name, and then "GPS Receiver" on the store page. The model "11" [inch] Micnova GPS-N-7 Camera GPS Cable for Nikon" has two options (GPS-N-2 and GPS-N-7 cables), and one may work for you. Be aware that it seems to be the same as the original cable, prone to breaking if not used very carefully (or even if used very carefully!).Another possible replacement (which also has "No featured offers available"), as suggested by Amazon in the "See All Options" window, is the "Connection Cable for GPS Receiver Geotagger MX-G20/ G20M, Micnova GPS-N/GPS-N Plus, Opteka, Sevenoak, P-Franken, Genesis Compatible with Nikon DSLR Camera (Cable N3)" by Marrex, and gets better star ratings (at least for the N3 model), but no reviews with comments. As with the Micnova cable, it also comes in two versions: N1 for the Nikon 10 pin connector, and N3 for the Nikon DC-2 connector. These are apparently 6.69 inches long (per the answer by Amazon's AI), and also cost $37.00 each from the same vendor, Trade & Logistic Services, as of 27 June 2024.

The GPS function worked well with my camera. It typically provided location information to the camera within 15-30 seconds of coming on. The unit provides a small flashing green light when first turned on which then changes to a steady green light once the unit has determined the location. It was simpler to use than the corresponding camera's phone-based geolocation app (which never seems to work for me.)The units compact size makes it easy to carry whether or not it is attached to the camera. I'm using an aftermarket eye cup for camera and needed to remove the eye cup when attaching or removing the unit from the hot shoe. I'm still trying to figure out a good way to carry the unit on the camera strap rather than the hot shoe to avoid this. But overall I think this is a great little unit.The reason for the four stars rather than five is due to the cable from the unit to the camera. It plugs straight into the camera which results in the cable sticking out slightly. It would have been nicer if the N3 cable had a 90-degree connector to give it a lower profile. I was using the camera in outdoor in remote outdoor settings and the cable never did catch on anything or cause problems, but snagging was a minor concern.Other reviewers have commented on the altitude accuracy, but the altitude seemed roughly in the ballpark, although my use is more strongly oriented towards latitude and longitude rather than altitude.