Replacement for 3C16858: Drop-In Alternatives We Stock
Looking for a replacement for the 3C16858 (3C16858 - 3Com 8-Port 1000Base-X Ethernet Switch)? 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 3C16858
| SKU | 3C16858 |
|---|---|
| Product | 3C16858 - 3Com 8-Port 1000Base-X Ethernet Switch |
| Current price | $455.64 |
| Stock status | In Stock |
| Detail page | View 3C16858 › |
Drop-in replacements for 3C16858
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.
HPE R8Q70A#ABA Aruba 6200M 48-Port PoE+ 10/100/1000Base-T Gigabit Ethernet RJ-45 4-Port 10GBase-X 10Gigabit Ethernet SFP+ Uplink Layer 3 Managed Stackable 1U Rack-mountable Network Switch
SKU: R8Q70A#ABA
Price: $4,713.68
JGS516 - Netgear ProSafe 16-port Gigabit Ethernet Switch 16 x 10/100/1000Base-T LAN Ethernet Switch
SKU: JGS516
Price: $226.08
B3G124-24P-G - Enterasys Secure Stack 24-Port Ethernet Switch with PoE 24 x 10/100/1000Base-T LAN Ethernet Switch
SKU: B3G124-24P-G
Price: $291.79
B3G124-24P - Enterasys Secure Stack 24-Port Ethernet Switch with PoE 24 x 10/100/1000Base-T LAN Ethernet Switch
SKU: B3G124-24P
Price: $291.79
C3G124-24P - Enterasys SecureStack C3 24-Port Ethernet Switch with PoE 24 x 10/100/1000Base-T LAN 4 x SFP Ethernet Switch
SKU: C3G124-24P
Price: $291.79
C3G124-24P-G - Enterasys SecureStack C3 24-Port Ethernet Switch with PoE 24 x 10/100/1000Base-T LAN 4 x SFP Ethernet Switch
SKU: C3G124-24P-G
Price: $344.84
Allied AT-FS708/POE-50 Telesis 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708-POE-50
Price: $347.50
Allied AT-FS708/POE-30 Telesis 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708-POE-30
Price: $347.50
Allied AT-FS708/POE-10 Telesyn 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708-POE-10
Price: $347.50
Allied AT-FS708/POE-40 Telesis 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708-POE-40
Price: $347.50
AT-FS708 - Allied Telesyn 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708
Price: $347.50
Allied AT-FS708/POE Telesis 8-Port Ethernet Switch 8 x 10/100Base-TX LAN 1 x SFP Ethernet Switch
SKU: AT-FS708-POE
Price: $347.50
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.