# X281C Keysight Waveguide Adapter New

**Features:**

-   Superior RF Performance
-   Maximum SWR: 1.05
-   Waveguide Designator: EIA WR-90 MIL-W-85/1-077
-   Flange Designator: UG-135/U MIL-F-3922/54C-008
-   Optional Connector: Type-N female (see picture) or Type-N male

The Keysight X281C adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.

## Details

- **Price:** 2199.0 USD
- **Vendor:** Keysight
- **Type:** Wave Adap
- **Tags:** product_manual_group_3

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2199.00 USD | In stock |

## Images

- X281C Keysight Technologies Waveguide Adapter

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> Source: [ValueTronics](https://valuetronics.com/products/x281c-keysight-waveguide-adapter-new)
> Updated: 2026-05-29