# Plantronics - Electronic Hook Switch Cable APP-51 - Remote Desk Phone Call Control - Works with Poly Desk Phones — resale value

Source: JunkPal price guide — https://junkpal.ai/products/plantronics-electronic-hook-switch-cable-app-51-remote-desk-phone-call-b009sq0h3w

**Plantronics - Electronic Hook Switch Cable APP-51 - Remote Desk Phone Call Control - Works with Poly Desk Phones** sells for about **$28.52** new or sealed, based on real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/plantronics-electronic-hook-switch-cable-app-51-remote-desk-phone-call-b009sq0h3w

## Value

| Condition | Value (USD) |
| --- | --- |
| New / Sealed | $28.52 |

Values are medians of real closed eBay sales, updated 2026-07-19. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DPlantronics%2520APP-51%2520Electronic%2520Hook%2520Switch%2520Cable%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DPlantronics%2520APP-51%2520Electronic%2520Hook%2520Switch%2520Cable%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| Brand | Plantronics |
| Category | Electronics |

## About

The Plantronics APP-51 is an electronic hook switch cable designed for remote desk phone call control. It is compatible with Poly Desk Phones.

This accessory is sought after by users needing reliable call control functionality with their Poly desk phone systems.

The resale value of this item is determined by its condition and completeness.

## FAQ

**What is the APP-51 used for?**

The APP-51 is an electronic hook switch cable used for remote desk phone call control.

**What devices is this cable compatible with?**

This accessory works specifically with Poly Desk Phones.

**What factors affect the resale value?**

The resale value is driven by the item's condition and whether it is complete.

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Full price guide: https://junkpal.ai/products/plantronics-electronic-hook-switch-cable-app-51-remote-desk-phone-call-b009sq0h3w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-19, based on real sold listings (junkpal.ai)"