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Green circuit board with black memory chips and gold edge connectors

HP

HP 13L78AT 4GB DDR4 3200 Desktop RAM

SKU CH-FHH8-A1BBQ MPN 13L78AT

A 4 GB DDR4 desktop module running at 3200 MHz with CL1.5 latency in a 288-pin DIMM format

  • Total capacity4 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL1.5
  • Product colorBlack
  • 4 GB capacity expands system memory for everyday tasks
  • DDR4 3200 speed delivers 25600 MT/s data rate
  • CL1.5 latency reduces access delay for responsive performance
  • 288-pin DIMM form factor fits standard desktop slots
  • RoHS certification confirms environmentally friendly materials

4GB DDR4 3200 Desktop Memory

This HP 13L78AT module adds 4GB of DDR4 3200 memory to a desktop system. It uses the standard 288-pin DIMM form factor and runs at PC4 25600 speed with a CAS latency of CL1.5. The black module has no LED lighting and carries RoHS environmental certification.

Upgrade from lower-capacity or slower DDR4 modules

Replacing a smaller or slower DDR4 stick with this 4GB 3200 MHz module increases total memory bandwidth for everyday multitasking. The jump is worth it when the motherboard has a free 288-pin slot and supports the DDR4 3200 standard without requiring a voltage change.

Limited by the DDR4 3200 standard

The DDR4 3200 interface caps transfer rates at PC4 25600, so total throughput cannot exceed this ceiling even with tighter timings. A single 4GB module also restricts total system capacity unless additional identical sticks are installed in matched channels.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $50.99
Cheaper than about 65% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $12.75 per GB
Pricier than about 79% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameHP
Total capacity4 GB
Product colorBlack
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL1.5
Size & build
Shipping weight0.45 kg
Package size229 × 152 × 13 mm
More details
LED lightingNone

Questions about this item

Does the 288-pin DIMM fit a standard DDR4 desktop slot?

Yes, the module uses the 288-pin DIMM form factor that matches any desktop DDR4 motherboard slot.

How do I install the module and what step is often missed?

Align the notch with the slot key, press down firmly until both side clips snap shut, then verify the system shows 3200 MHz in BIOS.

When might the 4 GB DDR4 module need replacement?

Replace it if memory diagnostics report errors, if you need more than 4 GB capacity, or if a future platform requires a different DDR generation.

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