Replacement for XSL8500-UPG-4000: Drop-In Alternatives We Stock
Looking for a replacement for the XSL8500-UPG-4000 (XSL8500-UPG-4000 - Sun Slot upgrade 3500 to 4000)? 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 XSL8500-UPG-4000
| SKU | XSL8500-UPG-4000 |
|---|---|
| Product | XSL8500-UPG-4000 - Sun Slot upgrade 3500 to 4000 |
| Stock status | In Stock |
| Detail page | View XSL8500-UPG-4000 › |
Drop-in replacements for XSL8500-UPG-4000
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.
F5 F5 Networks F5-4000 F5 Networks F5-4000 BIG-IP 4000 Series 8 x Ports 10Gigabit Ethernet Load Balancing Switch
SKU: F5 NETWORKS F5-4000
Price: $415.39
754558-304 - Intel Slot-1 AGP Slot 4 PCI Slot-2 ISA Slot-3 DIMM ATX Motherboard
SKU: 754558-304
Price: $505.53
HP J9311-61101 ProCurve 3500 yl Series 3500-48G-PoE+ 44 x RJ-45 Ports PoE+ 10/100/1000Base-T + 4 x Dual-Personality SFP+ Ports Layer 3 Managed 1U Rack-mountable Gigabit Ethernet Network Switch
SKU: J9311-61101
Price: $229.47
FX-3500 - NVIDIA Quadro FX 3500 256MB 256-bit GDDR3 PCI Express Video Graphics Card
SKU: FX-3500
Price: $395.34
CF245A - HP LaserJet 3500-sheet High-capacity Input Tray Feeder and Stand 3500 Sheet
SKU: CF245A
Price: $811.63
PA2521U-3ACA - Toshiba 90-Watts 15V 6.0A AC Adapter for Portege 3500 / 4000 / Satellite Pro 6050 / M15
SKU: PA2521U-3ACA
Price: $285.24
MEM-4000-16F - Cisco 16MB Kit (2 X 8MB) Flash Memory for Cisco 4000 Series
SKU: MEM-4000-16F
Price: $290.33
IE-4000-8S4G-E - Cisco Industrial Ethernet 4000 RJ-45 8 x Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8S4G-E
Price: $803.79
IE-4000-8GT8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8GT8GP4G-E
Price: $2,601.74
IE-4000-4GS8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-4GS8GP4G-E
Price: $6,126.25
EX4500-40F-VC1-DC - Juniper Network Switch Chassis 43 Slot x No 40 x SFP+ 2 x Expansion Slot 1 x Stacking Module Slot
SKU: EX4500-40F-VC1-DC
Price: $393.42
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.