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Green circuit board SODIMM memory module with gold contacts and black chips

Computer Memory Solutions

Computer Memory Solutions 256MB PC100 SODIMM 100-Pin Laserjet 4345 4345Mfp 4345X 4345Xm 4345Xs B125

SKU CH-P844-TXBRR

256 MB PC100 SODIMM memory upgrade for HP LaserJet 4345 series printers

  • Total capacity256 MB
  • Rated speedPC 100
  • ChipsetMajor Brand Chipset
  • CAS latencyCL2.5
  • Memory timings3-3-3
  • Rated voltage2.5 V
  • 256 MB capacity expands printer memory for larger jobs
  • PC100 100 MHz speed matches original specification
  • 100-pin SODIMM form factor fits LaserJet 4345 series
  • Unbuffered non-ECC design ensures direct compatibility
  • Major-brand chipset delivers reliable operation

Targeted Printer Upgrade

This 256 MB SODIMM module is built for HP LaserJet 4345 series printers including the 4345Mfp, 4345X, 4345Xm and 4345Xs. It provides a direct memory expansion for compatible devices needing additional buffer capacity. Buyers with printers outside this specific model list will not be able to use this module.

100-Pin SODIMM Form Factor

The stick uses a 100-pin SODIMM interface that slots into the designated printer memory socket without tools. Unbuffered, non-ECC construction with major brand chips keeps the electrical load simple for the host controller. Systems requiring registered or ECC memory cannot accept this module.

Low-Voltage Stable Operation

Rated at 2.5 V with CL2.5 timing at 100 MHz and 3-3-3 latencies, the module runs cool inside the printer chassis with no active cooling required. Power draw remains minimal during print job processing. Environments demanding higher-speed DDR or 3.3 V SDRAM standards are not supported by this part.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 256 MB
Lower than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $97.62 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256MBPC100100PIN
Total capacity256 MB
Performance
Rated speedPC 100
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL2.5
Memory timings3-3-3
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage2.5 V
Compatibility
Compatible systemsHp Laserjet 4345, 4345Mfp, 4345X, 4345Xm, 4345Xs
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the PC100 SODIMM run at 100 MHz or 133 MHz in the LaserJet 4345?

The module is rated PC100 at 100 MHz; the 133 MHz figure is the chip maximum, not the bus speed the printer uses.

Will the 100-pin SODIMM fit the LaserJet 4345 memory slot?

Yes, the 100-pin SODIMM form factor matches the slot in the LaserJet 4345, 4345Mfp, 4345X, 4345Xm and 4345Xs models.

What is the correct way to seat the SODIMM so the printer recognises the 256 MB upgrade?

Insert the module at a 30–45° angle until the gold contacts disappear, then press down firmly until both side clips click; the common mistake is stopping before the clips engage.

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