Replacement for 3C16820: Drop-In Alternatives We Stock
Looking for a replacement for the 3C16820 (3C16820 - 3Com 4005 Switch Chassis 14 x Expansion Slot (s) Switch Chassis)? Pro Disk Network ships 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 3C16820
| SKU | 3C16820 |
|---|---|
| Product | 3C16820 - 3Com 4005 Switch Chassis 14 x Expansion Slot (s) Switch Chassis |
| Stock status | In Stock |
| Detail page | View 3C16820 › |
Drop-in replacements for 3C16820
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.
JC612AR - HP 10508 Switch Chassis Manageable 14 x Expansion Slots 14 x Expansion Slot DB-9 3 10 Gigabit Ethernet Layer Supported 14U High Rack-mountable Desktop (Re
SKU: JC612AR
Price: $684.21
HPE JC125-69001 9512 14 x Expansion Slots Layer 4 17U Rack-mountable Switch Chassis
SKU: JC125-69001
Price: $366.32
JC748-61401 - HP 10512 18-Expansion Slots Manageable Rack-Mountable Switch Chassis
SKU: JC748-61401
Price: $1,347.37
J8693-61401 - HP E3500yl-48G-PoE 48-Ports 48 x 10/100/1000Base-T LAN 1 x Expansion Slot 4 x SFP (mini-GBIC) Layer-3 Managed Gigabit Ethernet Switch
SKU: J8693-61401
Price: $231.58
WS-C6500-E - Cisco Catalyst 6500 Series 9-Slot 14U Rack-Mountable Switch Fabric Module Chassis
SKU: WS-C6500-E
Price: $547.37
612614330 - Dell PowerConnect 6224 Layer 3 Switch 20 Port 4 Slot 20, 4 x 10/100/1000Base-T, 10/100/1000Base-TNo 4 x SFP (mini-GBIC) Slot
SKU: 612614330
Price: $1,591.58
JC148B - HP 1U Rack-Mountable Modular Expansion Base Chassis for 8805 Router
SKU: JC148B
Price: $1,471.58
1710-10U - IBM 14-Slot Disk Enclosure SATA-150 FastT EXP100 Expansion Unit
SKU: 1710-10U
Price: $811.63
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.