Hello and welcome to The House of Chrome.

 You are looking at a desirable older used Amphenol male 4 pin microphone cable connectors from the 1950's - 70's. These vintage model connectors were commonly used on Shure microphones and Electro Voice models as well as several other microphones and cables before the modern XLR cables became the standard. Many older mics were generally 3 and 4 pin screw on type models that had a completely different style of mics today.

 You'll see in pic # 2 this very connector type in an old Amphenol catalog.

 These connectors are a universal 4 pin with a notch so it can be used on Shure, Ampex, Electro Voice, Executone and other variant model mics.

 These will work with the Shure 545, 545S, 565, 565S, Electro Voice 664, 644, late model 630 & 636 to name a few.

 As you can see in the pics provided this connector is in very good used condition with just lite cosmetic wear. This male 4 pin connector just needs to be soldered to a cable of choice.

 This connector will require soldering and it's a bit tricky so if you have those skills then this will do you justice. If you don't have the experience or ability to solder then I would suggest saving yourself the time and headache by simply buying a complete cable. There are vids on You Tube as well showing you how it's done.

 It's reasonably priced and will do anybody justice who needs one.

 Pic # 5 & 6 shows how the connector attaches to any 4 pin mic you have.

          MICROPHONE SHOWN IS NOT PART OF THIS SALE...USED FOR DISPLAY PURPOSES ONLY.

        As always...