Replacement for UNITYU4-100USR-DC: Drop-In Alternatives We Stock
Looking for a replacement for the UNITYU4-100USR-DC (UNITYU4-100USR-DC - Cisco Unity Unified Messaging v.4.0 for Lotus Domino License 16 Session, 2 TTS, 100 User)? 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 UNITYU4-100USR-DC
| SKU | UNITYU4-100USR-DC |
|---|---|
| Product | UNITYU4-100USR-DC - Cisco Unity Unified Messaging v.4.0 for Lotus Domino License 16 Session, 2 TTS, 100 User |
| Stock status | In Stock |
| Detail page | View UNITYU4-100USR-DC › |
Drop-in replacements for UNITYU4-100USR-DC
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.
SFP-OC48-SR-RF - Cisco SFP-OC48-SR - Cisco 2.5Gb/s OC-48/STM-16 SR-1 Single-Mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: SFP-OC48-SR-RF
Price: $113.36
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-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
MEM470016F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4500/4500-M/4700/4700-M
SKU: MEM470016F
Price: $116.33
MEM-4000M-4U16F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4000-M
SKU: MEM-4000M-4U16F
Price: $116.33
MEM-1X16F-DFB - Cisco 16MB Flash Memory for Cisco AS5100/AS5200 Router
SKU: MEM-1X16F-DFB
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-3660-16FC - Cisco 16MB PCMCIA Flash Memory Card for Cisco 3660 Series
SKU: MEM-3660-16FC
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
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.