Replacement for 787635-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 787635-B21 (HPE 787635-B21 6127XLG 4-Ports 40GbE QSFP+ 8-Ports 10GbE SFP+ Layer3 Managed GbE Blade 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 787635-B21
| SKU | 787635-B21 |
|---|---|
| Product | HPE 787635-B21 6127XLG 4-Ports 40GbE QSFP+ 8-Ports 10GbE SFP+ Layer3 Managed GbE Blade Network Switch |
| Current price | $447.37 |
| Stock status | In Stock |
| Detail page | View 787635-B21 › |
Drop-in replacements for 787635-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.
HPE JL323-61101 Aruba 2930 36-Ports PoE+ 1GBase-T 4-Ports PoE+ Dual Personality SFP/RJ-45 8-Ports PoE+ 10GbE RJ-45 Layer 3 Managed GbE Network Switch
SKU: JL323-61101
Price: $233.68
HPE JG540-61002 OfficeConnect 1910 Series 1910-48 48 x Ports 10/100Base-T + 2 x SFP Ports + 2 x GBE Ports Layer 3 Managed Fast Ethernet Network Switch
SKU: JG540-61002
Price: $294.74
HPE JG301-61201 HP JG301-61201 FlexNetwork 3600 EI Series 3600-24-PoE+ 24 x Ports PoE+ 100Base-TX + 2 x GBE Ports + 4 x Ports SFP (mini GBIC) Layer 3 Managed Gigabit Ethernet Network Switch
SKU: JG301-61201
Price: $342.11
HPE JL807-61101 Instant On 1960-24G 24-Ports 10/100/1000Base-T PoE (CL4 and CL6) 2-Ports 10GbE SFP+ 2-Ports 10GBase-T Layer 2 Smart-Managed GbE Network Switch
SKU: JL807-61101
Price: $1,117.89
HPE JL807-61001 Instant On 1960-24G 24-Ports 10/100/1000Base-T PoE (CL4 and CL6) 2-Ports 10GbE SFP+ 2-Ports 10GBase-T Layer 2 Smart-Managed GbE Network Switch
SKU: JL807-61001
Price: $1,117.89
HPE JL807-61021 Instant On 1960-24G 24-Ports 10/100/1000Base-T PoE (CL4 and CL6) 2-Ports 10GbE SFP+ 2-Ports 10GBase-T Layer 2 Smart-Managed GbE Network Switch
SKU: JL807-61021
Price: $1,117.89
HPE JL823A#ABA FlexNetwork 5140-24G-POE+-2SFP+-2XGT 24-Ports 10/100/1000Base-T 2-Ports SFP+ 2-Ports 10GBase-T Layer 3 Managed 1U Rack-mountable GbE Network Switch
SKU: JL823A#ABA
Price: $1,296.84
HPE R0M67A#ABA Aruba 2930M-40G 36x Ports Class6 PoE 1GBase-T 4x Ports Class6 PoE Dual Personality RJ-45/SFP 8x Ports 10GBase-T PoE 1U Rack-mountable Layer 3 Managed GbE Network Switch
SKU: R0M67A#ABA
Price: $2,492.63
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 JL689-61001 FlexFabric 5710-24XGT 24-Ports 10GBase-T 6-Ports QSFP+ 40GbE 2-Ports QSFP28 100GbE 1GB FlashMemory 4GB SDRAM Layer 3 Managed 1U rack-Mountable GbE Network Switch
SKU: JL689-61001
Price: $5,884.21
HPE JL259-61101 Aruba 2930F-24G-4SFP 24-Ports 1GBase-T 4-Ports SFP Layer 3 Managed 1U Rack-mountable GbE Network Switch
SKU: JL259-61101
Price: $942.11
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.