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Rectangular green circuit board with gold edge connector and black controller chip

HP

HP 5S496AA Z Turbo 4 TB internal SSD M.2 2280 PCIe NVMe 4.0

SKU CH-6ZVD-ZBZTD MPN 5S496AA

High-capacity 4 TB internal storage using PCI Express NVMe 4.0 x4 in M.2 2280 form factor

  • Capacity4TB
  • InterfacePCI Express NVMe
  • CacheNo DRAM (SLC)
  • 4 TB capacity stores large project libraries
  • PCIe 4.0 x4 interface enables fast data transfer
  • M.2 2280 form factor fits compact workstations
  • NVMe protocol reduces latency for demanding workloads
  • DRAM-less design with SLC cache optimises sustained performance

Capacity and purpose

The HP 5S496AA is a 4 TB internal solid-state drive built for PCIe NVMe 4.0 x4 slots. It suits workstations and desktops that need a single large volume for active project files, operating system and applications. Buyers who want more storage than 4 TB or who require a secondary drive for a separate array should look elsewhere.

Build and connection

The drive uses the M.2 2280 form factor and connects directly to a compatible motherboard slot without cables. It employs TLC NAND with an SLC cache and has no separate DRAM buffer, so sustained write performance relies on the controller and host memory buffer support. Physical installation is a simple screw-down into the M.2 key-M socket.

Thermals and power

Under normal workloads the SSD operates within standard M.2 thermal limits and draws power solely from the slot, requiring no extra connectors. The lack of DRAM helps keep idle power low, while the SLC cache absorbs burst writes before the native TLC speed takes over. Adequate case airflow or a motherboard heatsink keeps temperatures stable during extended transfers.

Highlights

  • 4 TB capacity stores large project libraries
  • PCIe 4.0 x4 interface enables fast data transfer
  • M.2 2280 form factor fits compact workstations
  • NVMe protocol reduces latency for demanding workloads
  • DRAM-less design with SLC cache optimises sustained performance

Specifications

Capacity4TB
InterfacePCI Express NVMe
CacheNo DRAM (SLC)
BrandHP
Model5S496AA
Part Number5S496AA
Shipping weight0.45 kg
Package size25 × 25 × 25 mm

Questions about this item

What PCIe standard does the 5S496AA use and what throughput limit does 4.0 x4 set?

The drive runs on PCI Express 4.0 x4, which caps sequential throughput at the lane limit of that standard.

What physical slot and form factor does the 2280 model require?

It needs an M.2 2280 key-M slot; the 80 mm length must be supported by the motherboard or riser.

How is the 5S496AA installed and which step is often missed?

Insert at an angle, press flat, and secure with the single M.2 screw; the step often missed is fastening that screw.

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