Replacement for UNITYV4-50USR: Drop-In Alternatives We Stock
Looking for a replacement for the UNITYV4-50USR (UNITYV4-50USR - Cisco Unity Voice Messaging v.4.0 Licence Standard 50 Mailbox, 16 Session)? Pro Disk Network ships Cisco drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the UNITYV4-50USR
| SKU | UNITYV4-50USR |
|---|---|
| Product | UNITYV4-50USR - Cisco Unity Voice Messaging v.4.0 Licence Standard 50 Mailbox, 16 Session |
| Stock status | In Stock |
| Detail page | View UNITYV4-50USR › |
Drop-in replacements for UNITYV4-50USR
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Cisco CAB-C19-CBN 9.ft 250V AC Standard Power Cord for Catalyst 6500 Series Switch
SKU: CAB-C19-CBN
Price: $220.05
MEM-4500M-16F-APP - Cisco 16MB Kit (2 X 8MB) Flash Memory Card for Cisco 4500/4500-M/4700
SKU: MEM-4500M-16F-APP
Price: $116.33
MEM470016F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4500/4500-M/4700/4700-M
SKU: MEM470016F
Price: $116.33
MEM-4700M-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4500/4500-M/4700-M/4700
SKU: MEM-4700M-16F
Price: $116.33
MEM-47000M-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4500/4500-M/4700-M/4700
SKU: MEM-47000M-16F
Price: $116.33
MEMC6KFLC16 - Cisco 16MB PCMCIA Flash Memory Card for Cisco Catalyst 6000/6500
SKU: MEMC6KFLC16
Price: $116.33
MEM-4500M-4U16F - Cisco 16MB Kit (2 X 8MB) Flash Memory Card for Cisco 4500/4500-M/4700
SKU: MEM-4500M-4U16F
Price: $116.33
MEM-4500M-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory Card for Cisco 4500/4500-M/4700
SKU: MEM-4500M-16F
Price: $116.33
MEM-4500-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory Card for Cisco 4500/4500-M/4700
SKU: MEM-4500-16F
Price: $116.33
Power Cisco entry module ( plug-in module ) - refurbished for Cisco 7603; Catalyst 6503
SKU: PEM-20A-AC--RF
Price: $120.39
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.