Replacement for X6990A: Drop-In Alternatives We Stock
Looking for a replacement for the X6990A (X6990A - Sun 750MHz UltraSPARC III CPU Module for Fire 280R)? Pro Disk Network ships 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 X6990A
| SKU | X6990A |
|---|---|
| Product | X6990A - Sun 750MHz UltraSPARC III CPU Module for Fire 280R |
| Current price | $126.68 |
| Stock status | In Stock |
| Detail page | View X6990A › |
Drop-in replacements for X6990A
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.
X7047A - Sun Fire CPU / Memory Board with 2 UltraSPARC III 750MHz CPU and 4GB Memory
SKU: X7047A
Price: $252.28
501-6360 - Sun CPU/Memory Board with 2x UltraSPARC III 750MHz for fire V880
SKU: 501-6360
Price: $95.08
X4005A - Sun Fire CPU/Memory Uniboard with 4 UltraSPARC III 750MHz Processor
SKU: X4005A
Price: $619.67
501-6706 - Sun CPU/Memory Board 2 X 1.05GHz UltraSPARC III CPU 8MB Cache No Memory for Fire V480/V880z and V880 Server
SKU: 501-6706
Price: $194.43
501-6164 - Sun CPU/Memory Board 2 X 1200MHZ UltraSPARC III CPU 8MB Cache 4GB DRAM Memory (16X256MB) for Fire V480 / V880z Server
SKU: 501-6164
Price: $286.32
501-6163 - Sun CPU/Memory Board 2 X 1.05GHz UltraSPARC III CPU 8MB Cache 4GB DRAM Memory (16X256MB) for Fire V480 / V880z and V880 Server
SKU: 501-6163
Price: $296.46
501-6707 - Sun 2 X 1.05GHz UltraSPARC III CPU Memory Board for Fire V480 / V880z / V880 Server
SKU: 501-6707
Price: $182.93
540-6079 - Sun CPU/Memory System Board 4 x 900MHz UltraSPARC III for Fire 12K
SKU: 540-6079
Price: $194.74
540-4990 - Sun CPU/Memory System Board 4x 900MHz UltraSPARC III for Fire 12K
SKU: 540-4990
Price: $273.68
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.