HPE P18420-B21 — 240GB SATA 6G Read Intensive SFF Smart Carrier Multi-Vendor SSD
What it is
P18420-B21 is an HPE enterprise SATA solid-state drive designed for HPE ProLiant servers and supported storage platforms.
It’s a 240GB SATA 6Gb/s Read Intensive (RI) SSD in a 2.5" small form factor (SFF) that ships on an HPE Smart Carrier (SC) for hot-swap bays.
“Multi-Vendor” means HPE may supply an approved equivalent SSD model over time while maintaining the same workload class and published specification range.
Why buyers pick P18420-B21 (plain English)
Reliable small-capacity SSD
240GB provides dependable usable space for boot, OS, and read-focused workloads at a low cost.
Read Intensive workload class
Optimized for environments dominated by reads with moderate writes — ideal for boot volumes, OS partitions, and read-heavy service tiers.
Enterprise SATA interface
SATA 6Gb/s offers broad compatibility and cost-effective performance for mainstream storage needs.
Hot-swap ready
Includes an HPE Smart Carrier for easy installation and click-in tool-less replacement with visual drive status.
Multi-Vendor value
Approved multi-vendor sourcing provides cost advantages while maintaining consistent workload-class performance.
60-second spec box (P18420-B21)
Capacity
240GB
Interface
SATA 6Gb/s
Form factor / carrier
2.5" SFF
HPE Smart Carrier (hot-swap)
Workload class
Read Intensive (RI)
Endurance class
Read-optimized enterprise SSD
Firmware / platform
HPE-qualified SSD firmware for ProLiant
Warranty
3-year HPE warranty
Use case
Boot drives, OS storage, read-heavy application tiers, virtualization read caches.
Where it fits (and when to choose something else)
Perfect for:
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ProLiant servers with SFF hot-swap bays
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Boot, OS, or read-centric storage tiers
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Virtualization and VDI environments
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Cost-sensitive enterprise storage designs
Choose something else if:
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You need balanced read/write performance → Mixed Use (MU) SSDs
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You need higher write endurance → Write Intensive (WI) SSDs
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You need ultra-low latency or very high IOPS → NVMe SSDs
TL;DR
P18420-B21 is HPE’s 240GB SATA 6G Read Intensive SFF SSD on Smart Carrier:
a hot-swap enterprise SATA SSD optimized for read-heavy workloads with dependable performance and cost-effective capacity.
