Do you need male and female slots? For this, Pico offers a Dual E-Cal Kit:
TA520 | PicoVNA 108 Dual E-Cal 8.5 GHz Kit automated calibration (SMA male / female)
A manual calibration process involves multiple docking and undocking operations for the standards and manually loading individual characterization files for each standard. The E-Cal SOLT calibration process reduces this to a single port by internally switching its calibration standards. The process is controlled automatically and highly repeatably, with power, control and data readout managed by PicoVNA software via a USB interface.
Fast, convenient, and less error-prone, a simple E-Cal standard is somewhat vulnerable to switching inaccuracies that result in non-ideal shorts, opens, stresses, and continuity. PicoVNA's E-Cal standards incorporate rapid temperature compensation through furnace control and multipath S-parameters over the full frequency range covered, which traceably characterize these now stable and minor imperfections. Yet the convenience, reduced labor and speed of automated calibration can lead to more regular calibration and therefore more accurate, repeatable and reliable measurements - which may prompt some process managers to insist on an automated E-Cal.
All PicoVNA calibration and verification standards are calibrated against fully traceable national standards and are supplied in a protective sleeve.
Standards: Short, Open, Load, Through and separately characterized port adapters