Replacement for 8721ALG: Drop-In Alternatives We Stock
Looking for a replacement for the 8721ALG (8721ALG - Lenovo Rack Mountable Flex System Enterprise Chassis)? Pro Disk Network ships IBM 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 8721ALG
| SKU | 8721ALG |
|---|---|
| Product | 8721ALG - Lenovo Rack Mountable Flex System Enterprise Chassis |
| Stock status | In Stock |
| Detail page | View 8721ALG › |
Drop-in replacements for 8721ALG
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.
46W0955 - IBM Chassis Management Module for Flex System Enterprise Chassis
SKU: 46W0955
Price: $191.58
49Y4294 - IBM Flex System EN2092 1GB Ethernet Scalable Switch 20 Port Manageable 20 x RJ-45 4 x Expansion Slots 10/100/1000Base-T Rack-mountable
SKU: 49Y4294
Price: $2,905.39
9532L2J - IBM / Lenovo Flex System x240 M5 Intel Xeon E5 12-Core 2.50GHz 30MB Cache CPU 16GB RAM Rack Server System
SKU: 9532L2J
Price: $2,275.75
7903B2U - IBM / Lenovo Flex System x280 X6 2x Intel Xeon E7 V2 15-Core 2.50GHz 37.5MB Cache CPU 32GB RAM Rack Server System
SKU: 7903B2U
Price: $4,941.63
81Y2913 - IBM Left and Right Plastic Label Plates for Flex System Enterprise Chassis
SKU: 81Y2913
Price: $232.84
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.