Replacement for J9979A-AC3: Drop-In Alternatives We Stock
Looking for a replacement for the J9979A-AC3 (HP J9979A#AC3 OfficeConnect 1820-8G 8-Port 4x 10/100/1000 (PoE+) + 4x 10/100/1000Base-T Managed Gigabit Ethernet Rack-mountable Switch)? Pro Disk Network ships HP 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 J9979A-AC3
| SKU | J9979A-AC3 |
|---|---|
| Product | HP J9979A#AC3 OfficeConnect 1820-8G 8-Port 4x 10/100/1000 (PoE+) + 4x 10/100/1000Base-T Managed Gigabit Ethernet Rack-mountable Switch |
| Current price | $235.79 |
| Stock status | In Stock |
| Detail page | View J9979A-AC3 › |
Drop-in replacements for J9979A-AC3
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.
HP 1820-48G-POE+ OfficeConnect 1820 Series 1820-48G-PoE+ 24 x RJ-45 Ports PoE+ 10/100/1000Base-T + 24 x Rj-45 Ports + 4 x SFP Ports Layer 2 Managed Rack-mountable Gigabit Ethernet Network Switch
SKU: 1820-48G-POE+
Price: $524.21
HP J9979A#ABB OfficeConnect 1820-8G 8-Port 4x 10/100/1000 (PoE+) + 4x 10/100/1000Base-T Managed Gigabit Ethernet Rack-mountable Switch
SKU: J9979A-ABB
Price: $235.79
HP J9979A#ACC OfficeConnect 1820-8G 8-Port 4x 10/100/1000 (PoE+) + 4x 10/100/1000Base-T Managed Gigabit Ethernet Rack-mountable Switch
SKU: J9979A-ACC
Price: $235.79
HP J9979A#ACD OfficeConnect 1820-8G 8-Port 4x 10/100/1000 (PoE+) + 4x 10/100/1000Base-T Managed Gigabit Ethernet Rack-mountable Switch
SKU: J9979A-ACD
Price: $235.79
J9982AR - HP OfficeConnect 1820-8G 4x 10/100/1000Base-T (PoE+) 4x 10/100/1000Base-T Gigabit Ethernet Layer 2 Managed Rack-Mountable Switch
SKU: J9982AR
Price: $619.67
HP J9982A#AC3 OfficeConnect 1820-8G 4x 10/100/1000Base-T (PoE+) 4x 10/100/1000Base-T Gigabit Ethernet Layer 2 Managed Rack-Mountable Switch
SKU: J9982A-AC3
Price: $619.67
J9981A - HP OfficeConnect 1820-48G 48 x Ports 10/100/1000Base-T + 4 x SFP Layer-2 Managed Gigabit Ethernet Network Switch
SKU: J9981A
Price: $124.21
J9981-61001 - HP OfficeConnect 1820-48G 48 x Ports 10/100/1000Base-T + 4 x SFP Layer-2 Managed Gigabit Ethernet Network Switch
SKU: J9981-61001
Price: $124.21
J9979AR - HP OfficeConnect 1820-8G PoE+ 8 x Ports 10/100/1000Base-T + 4 x SFP Layer-2 Managed Gigabit Ethernet Network Switch
SKU: J9979AR
Price: $145.26
J9979A - HP OfficeConnect 1820-8G PoE+ 8 x Ports 10/100/1000Base-T + 4 x SFP Layer-2 Managed Gigabit Ethernet Network Switch
SKU: J9979A
Price: $145.26
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.