Cisco PVDM4-256
256-channel DSP module
Key facts
- Part number
- PVDM4-256
- Brand
- Cisco
- Category
- Modules & licenses
- Price
- AUD 512 from Prology AU (refurbished)USD 338 from Prology US (refurbished)
- Availability
- Prology AU: Refurbished · in stock
- Prology US: Refurbished · in stock
Overview
256-channel DSP module
The PVDM4 modules are supported on the Cisco 4451-X platform. You can plug them directly into the single slot on the router motherboard or onto the network interface module (NIM) that supports T1/E1 ports. Enhanced DSP architecture accommodates a new packet-processing engine optimized for rich-media voice applications, while concurrently supporting the time-division multiplexing IP (TDM-IP) voice framework.
A PVDM4 module plugged onto the motherboard delivers IP-based voice services such as conferencing, media optimization, and transcoding. A PVDM4 module plugged onto the NIM daughter card would be used for voice T1/E1 connectivity.
All the PVDM4 modules have the same form factor and are field-upgradable to allow you to easily scale your voice deployments.
Specifications
General
- Compatibility
- Cisco 4400 Series Integrated Services Routers
- Product Type
- PVDM
Manufacturer Website Address
- Manufacturer
- Cisco Systems, Inc
- Product Name
- 256-Channel High-Density Voice DSP Module, or Spare
- Brand Name
- Cisco
- Application/Usage
- Voice
- Weight (Approximate)
- 36.3 g
- Height
- 17 mm
- Width
- 63.5 mm
- Depth
- 66.5 mm
Reference price history
Recorded reference and list prices over time. Not Prology selling prices.
- Latest
- AUD 42,905.79≈ USD 29,651
- Oct 2026
- Lowest recorded
- AUD 42,905.79≈ USD 29,651
- Highest recorded
- AUD 42,905.79≈ USD 29,651
- Recorded
- 2026
- 1 price point
- RRP
- Prology AU
- Prology US
- List price
Buy or sell Cisco PVDM4-256
Buying Cisco modules & licenses
Prology stocks the Cisco PVDM4-256 from USD 338 on Prology AU and Prology US. Need more than one, or a different condition? Request a quote for volume pricing.
Selling Cisco modules & licenses
Have a spare or decommissioned PVDM4-256? Prology buys used and surplus Cisco modules & licenses — single units or whole lots — and replies with an offer within 1 business day. Sell your PVDM4-256.
- What is the Cisco PVDM4-256?
- The Cisco PVDM4-256 is a Cisco module & license – 256-channel DSP module.
- How much does the Cisco PVDM4-256 cost?
- The reference price on record is AUD 42,905.79 (Oct 2026). It is a reference figure, not a selling price — the live price is on the Prology store page.
- Where can I buy the Cisco PVDM4-256?
- It is listed on Prology AU and Prology US. Use the “View on Prology” button above for live price, condition and stock, or request a quote for volume pricing.
- Can I sell a used Cisco PVDM4-256?
- Yes. Prology buys used and surplus Cisco modules & licenses, including the PVDM4-256. Get an offer — sell outright or trade in against your next order.
Request a quote for PVDM4-256
Tell us the quantity and condition you need. Prology replies with a firm price and lead time within 1 business day.