Replacement for UNITY-31-UVM-16: Drop-In Alternatives We Stock
Looking for a replacement for the UNITY-31-UVM-16 (UNITY-31-UVM-16 - Cisco Unity Voice Messaging v.3.1 Version Upgrade License 16 Session PC English)? 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 UNITY-31-UVM-16
| SKU | UNITY-31-UVM-16 |
|---|---|
| Product | UNITY-31-UVM-16 - Cisco Unity Voice Messaging v.3.1 Version Upgrade License 16 Session PC English |
| Stock status | In Stock |
| Detail page | View UNITY-31-UVM-16 › |
Drop-in replacements for UNITY-31-UVM-16
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
A02-M316GB1-L - Cisco 16GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: A02-M316GB1-L
Price: $125.22
A02M316GB1L - Cisco 16GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: A02M316GB1L
Price: $125.22
A02-M316GB1-L-RF - Cisco 16GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: A02-M316GB1-L-RF
Price: $125.22
POM-OC48-SR-LC-C - Cisco 2.5Gb/s OC-48/STM-16 SR 1310nm LC Connector SFP Transceiver Module
SKU: POM-OC48-SR-LC-C
Price: $125.80
15-13131-01 - Cisco 16GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Quad Rank Memory Module
SKU: 15-13131-01
Price: $136.59
A02-M316GB2-L-RF - Cisco 16GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Dual Rank Memory Module
SKU: A02-M316GB2-L-RF
Price: $136.59
15-13129-01 - Cisco 16GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Quad Rank Memory Module
SKU: 15-13129-01
Price: $136.59
15-13129 - Cisco 16GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Quad Rank Memory Module
SKU: 15-13129
Price: $136.59
A02-M316GB2-L - Cisco 16GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Quad Rank Memory Module
SKU: A02-M316GB2-L
Price: $136.59
15-103231-01 - Cisco 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Dual-Rank Memory Module
SKU: 15-103231-01
Price: $142.30
WS-X6316-GE-TX - Cisco Catalyst 6500 16 x Ports Gigabit Ethernet Switching Module
SKU: WS-X6316-GE-TX
Price: $176.21
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.