Replacement for 378926-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 378926-B21 (378926-B21 - HP Gigabit Ethernet Switch Module Cgesm Bl P-Class Ethernet 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 378926-B21
| SKU | 378926-B21 |
|---|---|
| Product | 378926-B21 - HP Gigabit Ethernet Switch Module Cgesm Bl P-Class Ethernet Switch |
| Current price | $303.16 |
| Stock status | In Stock |
| Detail page | View 378926-B21 › |
Drop-in replacements for 378926-B21
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 447116-001 BladeSystem c-Class 16 x Ports 10/100/1000Base-T + 4 X 10 Gigabit XFP Ports Managed Gigabit Ethernet Network Switch
SKU: 447116-001
Price: $334.74
HPE R0X39-61201 Aruba 6400 48-Ports PoE 1000Base-T RJ-45 Gigabit Ethernet 4-Portss 50GBase-X 50 Gigabit Ethernet SFP56 Plug-in Module Switch Module
SKU: R0X39-61201
Price: $13,348.74
AG642A - HP Cisco 9124E 24-Port Blade System C-Class Fabric Switch HP Cisco 9124E 24-Port Blade System C-Class Fabric Switch
SKU: AG642A
Price: $273.91
HP JH018A#ABB OfficeConnect 1420 24G 2SFP+ 24-Port 24 x 10/100/1000 + 2 x 1 Gigabit / 10 Gigabit SFP+ Gigabit Ethernet Unmanaged 1U Rack-mountable Network Switch
SKU: JH018A-ABB
Price: $712.64
HP JH018A#AC3 OfficeConnect 1420 24G 2SFP+ 24-Port 24 x 10/100/1000 + 2 x 1 Gigabit / 10 Gigabit SFP+ Gigabit Ethernet Unmanaged 1U Rack-mountable Network Switch
SKU: JH018A-AC3
Price: $712.64
HP BM136A G8000R RackSwitch 44 x Ports Gigabit Ethernet 4 x SFP+ Ports Back-to-Front Airflow Gigabit Ethernet Network Switch
SKU: BM136A
Price: $313.68
HP JL165A#ABA Altoline 6940 32-Port 24 x 40 Gigabit Ethernet + 8 x 40 Gigabit Ethernet Layer 3 1U Rack-mountable Switch
SKU: JL165A-ABA
Price: $6,826.11
HP JL316A#ABB Altoline 6921 48-Port 48 x 10 Gigabit Ethernet + 6 x 40 Gigabit Ethernet 1U Rack-mountable Layer 3 Switch
SKU: JL316A-ABB
Price: $8,157.89
HP JL317A#ABA Altoline 6921 48-Port 48 x 10 Gigabit Ethernet + 6 x 40 Gigabit Ethernet Rack-mountable Layer 3 Switch
SKU: JL317A-ABA
Price: $13,404.63
HP JL317A#ABB Altoline 6921 48-Port 48 x 10 Gigabit Ethernet + 6 x 40 Gigabit Ethernet Rack-mountable Layer 3 Switch
SKU: JL317A-ABB
Price: $13,404.63
HP JL318A#ABA Altoline 6921 48-Port 48 x 10 Gigabit Ethernet + 6 x 40 Gigabit Ethernet Rack-mountable Layer 3 Switch
SKU: JL318A-ABA
Price: $17,613.47
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.