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

PCB Size: 1.12" x 0.69" x 0.062"
Material: FR-4
Number of sides: double-sided with solid ground on the back 
Finish: HASL
Connectors: 3 Female SMA edge launch connectors included (PCB will accept standard edge launch connectors with 0.062 (1.6 mm) spacing)

This PCB will fit Mini-Circuits ADE Series Mixer for following part number: ADE-1L, ADE-3L, ADE-1, ADE-1ASK, ADE-2ASK, ADE-3G, ADE-4, ADE-5, ADE-6, ADE-30, ADE-30W, ADE-1LH, ADE-1LHW, ADE-1MH, ADE-1MHW, ADE-12MH, ADE-25MH, ADE-35MH, ADE-42MH, ADE-1H, ADE-1HW, ADE-17H. For JMS series Mixer: JMS-1, JMS-2, JMS-2W, JMS-5, JMS-1LH, JMS-2LH, JMS-5LH, JMS-1MH, JMS-2MH, JMS-5MH, JMS-1H, JMS-2H, JMS-5H. All above Mixer with "ht" connection (LO=pin6, RF=pin3, IF=pin2, GND=pin1,4,5). RMS Series has almost 40 different models, too many to list here. Please refer to mini-circuits website for detail information.

Following Mixer with "hu" connection (LO=pin6, RF=pin2, IF=pin3, GND=pin1,4,5): JMS-11X, ADE-13.

Please note the following:
1. Not all ADE series can use this PCB. For example the ADE-10H, ADE-12H, ADE-18, ADE-18W, ADE-18LH, ADE-20, ADE-35, ADE-R35LH, and ADE-901 pin-outs are different and will not fit since these parts use the 98-PL-051 footprint. Please check each mixer data sheet you plan to use, and verify the footprint orientation.
2. PCB color may vary.

If you want to purchase just the PC boards then see the link below.
https://www.ebay.com/itm/145158309036