Replacement for J9821A-B8X: Drop-In Alternatives We Stock
Looking for a replacement for the J9821A-B8X (HP J9821A#B8X Aruba 5406R zl2 PoE+ 6x Expnaison Slot Switching Module/Management Module Managed 4U Rack-Mountable Network 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 J9821A-B8X
| SKU | J9821A-B8X |
|---|---|
| Product | HP J9821A#B8X Aruba 5406R zl2 PoE+ 6x Expnaison Slot Switching Module/Management Module Managed 4U Rack-Mountable Network Switch |
| Current price | $1,069.89 |
| Stock status | In Stock |
| Detail page | View J9821A-B8X › |
Drop-in replacements for J9821A-B8X
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 J9825A#ACD ProCurve 5412R V2 Zl2 92-Ports 10/100/1000Base-T 8x Expnaison Slot Managed Gigabit Ethernet Switch
SKU: J9825A-ACD
Price: $6,384.00
HPE JL073-61101 Aruba 3810 24-Ports PoE+ 1GBase-T 1x Open Module Slot 1x Dual-Personality RJ-45/USB micro-B 2-Ports RJ-45 Console/Management 1U Rack-mountable Layer 3 Managed GbE Network Switch
SKU: JL073-61101
Price: $1,271.58
HPE JL071-61101 Aruba 3810M-24G 24-Ports 1GBase-T 1x Open Module Slot 1x Dual-Personality RJ-45/USB micro-B 2-Ports RJ-45 Console/Management 1U Rack-mountable Layer 3 Manageable Gigabit Ethernet Netwo
SKU: JL071-61101
Price: $534.74
HPE JL074-61101 Aruba 3810M-48G-PoE+ 48-Ports PoE+ 1GBase-T 1x Open Module Slot 1x Dual-Personality RJ-45/USB micro-B 2-Ports RJ-45 Console/Management 2x Power Supply Slots 1U Rack-mountable Layer 3 M
SKU: JL074-61101
Price: $1,117.89
HPE JL076-61101 Aruba 3810M-40G-8SR-PoE+ 40-Ports PoE+ 1GBase-T 8-Ports 1GbE RJ-45 MACSec Support 4-Ports SFP+ 10GbE 1x Open Module Slot 1U Rack-mountable Layer 3 Managed GbE Network Switch
SKU: JL076-61101
Price: $2,496.84
HPE J9626-61001 Aruba 2620 Series 2620-48 48 x RJ-45 Ports 10/100Base-TX + 2 x RJ-45 GE Ports + 2 x SFP(mini-GBIC) Slot Layer 3 Managed Rack-mountable Stackable Fast Ethernet Network Switch
SKU: J9626-61001
Price: $194.74
HPE J9626-61002 HP J9626-61002 Aruba 2620 Series 2620-48 48 x RJ-45 Ports 10/100Base-TX + 2 x RJ-45 GE Ports + 2 x SFP(mini-GBIC) Slot Layer 3 Managed Rack-mountable Stackable Fast Ethernet Network Sw
SKU: J9626-61002
Price: $194.74
HPE J9626#ABA HP J9626#ABA Aruba 2620 Series 2620-48 48 x RJ-45 Ports 10/100Base-TX + 2 x RJ-45 GE Ports + 2 x SFP(mini-GBIC) Slot Layer 3 Managed Rack-mountable Stackable Fast Ethernet Network Switch
SKU: J9626#ABA
Price: $194.74
R0M67-61001 - HP Aruba 2930M 40G 8 HPE Smart Rate PoE+ 1-Slot Switch - Switch 36 Ports Managed - Rack-Mountable
SKU: R0M67-61001
Price: $1,096.84
R0M67A - HP Aruba 2930M 40G 8 HPE Smart Rate PoE+ 1-Slot Switch - Switch 36 Ports Managed - Rack-Mountable
SKU: R0M67A
Price: $11,878.95
JL372A - HP Aruba X382 2750-Watts 54VDC AC Hot-Pluggable Redundant Power Supply For HPE Aruba 8400 8-slot Chassi
SKU: JL372A
Price: $50.53
Aruba Networks JL372A#B2B X382 2700-Watts 54V DC Power Supply For HPE Aruba 8400 8-slot Chassis Switch
SKU: JL372A-B2B
Price: $1,255.58
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.