HPE 3.84TB SATA RI SFF BC MV SSD - P40500-B21

HPE P40500-B21 3.84TB SATA Read-Intensive SSD

Overview

The HPE P40500-B21 is a 3.84TB SATA 6 Gb/s read-intensive SSD in small-form-factor (SFF) configuration, built for 24/7 surveillance recording and sequential read-heavy workloads in enterprise NVR and storage systems. The read-intensive profile means this drive is optimized for continuous playback, archival retrieval, and compliance recording — not frequent write cycles. If you're provisioning dedicated storage for a surveillance system that runs constant ingest with periodic forensic retrieval, this is the capacity and performance tier to evaluate.

Key Features

• 3.84TB Capacity: Holds approximately 20–30 days of 4K surveillance footage (depending on bitrate and compression), or 45–60 days at 1080p — enough for most corporate compliance retention windows without cascading to a second tier. Reduces the number of drives per NVR chassis and simplifies hot-swap logistics on multi-camera installs.
• SATA 6 Gb/s Interface: Standard enterprise connectivity across legacy and current NVR platforms (Hikvision, Uniview, Milestone-capable systems). No proprietary adapters required — direct plug compatibility with any standard SFF SATA slot.
• Small-Form-Factor (SFF) Design: Fits 2.5-inch drive bays common in compact NVR appliances and 1U/2U rackmount storage. Smaller footprint than 3.5-inch alternatives means higher density per chassis without power or thermal penalties.
• Read-Intensive SSD Profile: Optimized for low-latency playback and sequential retrieval rather than write-amplification cycles. In surveillance, you write once (ingest) and read many times (playback, forensics, compliance export). This drive's firmware and wear-leveling reflect that pattern — unnecessary write optimization would waste NAND lifespan on a workload that doesn't need it.
• Basic Carrier (BC): Includes HPE's standard mechanical carrier for tool-free installation in compatible HPE and third-party enclosures. Carrier clips into standard SFF rails — no screws, no alignment guessing. Matters on crowded NVR shelves where speed and repeatability count.
• 3-Year Manufacturer Warranty: Covers defects in materials and workmanship for the warranty period. On surveillance-grade storage, this is table-stakes protection — ensures replacement or repair if the drive fails during active use.

Integration & Compatibility

The P40500-B21 works with any NVR, surveillance server, or SAN that accepts standard 2.5-inch SATA SFF drives. No firmware updates required on the NVR side — this is passive storage. SATA 6 Gb/s is universal; if your system boots on SATA, this drive installs identically. Multi-drive RAID arrays (RAID 5, 6, or 10) benefit from consistent capacity and read performance across all members, so populating an NVR or storage shelf with matched P40500-B21 units ensures predictable rebuild times and redundancy behavior.

What's in the Box

HPE P40500-B21 3.84TB SSD with basic carrier included. No cables, no adapters, no documentation bundle specified in source evidence.

Frequently Asked Questions

Q: Is the P40500-B21 suitable for continuous 24/7 surveillance recording?

A: Yes. The read-intensive SSD profile is engineered for always-on ingest workloads. NAND endurance and firmware are tuned for continuous sequential writes typical of surveillance systems, not high-frequency random writes. This drive is rated for steady-state video stream recording across the warranty period.

Q: What's the warranty on the P40500-B21?

A: 3-year manufacturer warranty covering defects in materials and workmanship. Coverage applies from the date of purchase through the end of year three.

Q: Does the P40500-B21 come with a carrier?

A: Yes. The basic carrier (BC) is included. This is HPE's standard mechanical bracket for 2.5-inch SFF installations in compatible enclosures. The carrier provides tool-free installation and meets standard SFF rail dimensions.

Q: How much surveillance footage does 3.84TB hold?

A: Retention depends on bitrate and codec. At typical 1080p rates (4–6 Mbps per stream), expect 45–60 days per camera on a single drive. At 4K (8–12 Mbps), plan for 20–30 days. Use your NVR's storage calculator with your frame rate and bitrate to confirm exact retention for your deployment.

Q: Can I use the P40500-B21 in a RAID array with other SSDs?

A: Yes. Matching multiple P40500-B21 drives in RAID 5, 6, or 10 ensures consistent capacity, performance, and rebuild times. Avoid mixing read-intensive with write-optimized SSDs in the same array to prevent uneven wear and predictability issues.

Q: Is the P40500-B21 NDAA Section 889 compliant?

A: No evidence in the source data confirms NDAA compliance for this SKU. Contact HPE pre-sales engineering or your system integrator for current compliance certifications if NDAA is a requirement.

Karl Wilson

The P40500-B21 is a straightforward fit for surveillance-grade NVR deployments where you need reliable, dense storage without the premium cost of write-optimized enterprise SSDs. The 3.84TB capacity and read-intensive profile are well-matched to 24/7 ingest workloads — the drive's firmware and NAND wear-leveling are optimized for that exact pattern: constant sequential writes during recording, periodic sequential reads during forensic playback or compliance export. The model number P40500-B21 appears on most HPE SFF SSD spec sheets, and this one's strength is predictable, no-surprise performance on surveillance systems running Hikvision, Uniview, or any ONVIF-compatible NVR.

Technical Highlights:

• 3.84TB Capacity, SFF Form Factor: Delivers 20–30 days of 4K footage or 45–60 days at 1080p in a single 2.5-inch slot. Reduces the number of drives per NVR chassis and simplifies hot-swap procedures on multi-unit deployments — fewer moving parts means fewer failure modes per gigabyte of storage.
• Read-Intensive SSD Firmware: Not a general-purpose SSD. This drive's NAND endurance and garbage-collection algorithms assume your workload is write-once, read-many (surveillance ingest and playback). Forcing a general-purpose SSD into surveillance duty wastes write budget; this drive doesn't. Over a 3-year lifecycle, you'll see consistent performance without unexpected throttling as the drive's wear budget depletes.
• SATA 6 Gb/s, Basic Carrier Included: Zero integration friction. Plugs into any standard NVR SFF slot. The basic carrier (BC) fits HPE and third-party enclosures. No custom brackets, no firmware quirks, no connector surprises — just insert, configure in the NVR, and let it run.

Deployment Considerations:

• Read-intensive drives optimize for ingest stability, not write amplification. If your use case is temporary storage with frequent deletions or archival staging (write/erase cycles), this profile may not be ideal — consider a balanced or write-optimized variant for those patterns.
• SATA 6 Gb/s tops out at ~560 MB/s theoretical bandwidth. On a single-drive NVR, this is plenty for 4K 30fps ingest (typically 200–300 MB/s), but if you're stacking multiple cameras on a shared SATA channel or mixing NVR ingest with archive reads, account for contention. RAID arrays distribute load; check your NVR's multi-camera throughput specs if you're running more than 8–12 4K streams per drive.

The P40500-B21 is the right choice for traditional enterprise surveillance systems (hospitals, retail, manufacturing floors, casinos) where you need proven reliability, straightforward provisioning, and no surprises during 24/7 recording. If you're building a hyperscale cloud-connected system with bursty analytics workloads, or a temporary forensic staging tier, look at the broader HPE SSD family for a better profile match.