You are buying one Mini-Circuits SKY RF Frequency Mixer Development Evaluation PCB Kit w/SMA Connectors. This kit includes one PCB and three female edge launch SMA connectors.

Features: 
PCB Size: 1.11" x 0.67" x 0.062"
Material: FR-4
Finish: HASL
Impedance: 50 ohms GCPW (Grounded Coplanar Waveguide)
Number of sides: double-sided
Connectors: 3 Female SMA edge launch connectors included (PCB will accept standard edge launch connectors with 0.062 (1.6 mm) spacing)
ROHS Compliant
PCB conforms to case style: BJ398/BJ293

This PCB will fit Mini-Circuits SKY Series Mixer for following part numbers with "je" connection (LO=pin1, RF=pin5, IF=pin7, GND=pin2,3,4,6,8): SKY-5G, SKY-7G, SKY-42, SKY-60, SKY-60LH, SKY-60MH, SKY-60H, ADM-10DH.

For Mini-Circuits SKY Series Mixer for following part number with "hp" connection (LO=pin5, RF=pin1, IF=pin7, GND=pin2,3,4,6,8): SKY-53R, SKY-53LHR, SKY-53HR.

Mini-Circuits JYM-20H, JYM-28H, JYM-30H Mixers fit also.