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Two green 260-pin DDR4 SODIMM sticks with black chips

RIMLANCE

RIMLANCE RSO21300S8C2K8 8GB (2×4GB) DDR4 2666MHz CL19 1.2V SODIMM

SKU CH-33J0-S5976

Dual-channel 8 GB DDR4 kit with two 4 GB SODIMM modules at 2666 MHz CL19, 1.2 V, 1RX8 organisation

  • Total capacity8 GB (2 × 4 GB)
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Product type260-Pin DDR4 SO-DIMM
  • Dual-channel 8 GB kit enables smoother multitasking
  • DDR4 2666 MHz CL19 delivers responsive system speed
  • Low 1.2 V operation extends battery runtime
  • 260-pin SODIMM fits standard laptop slots
  • Unbuffered 1Rx8 design ensures broad compatibility

Laptop memory upgrade kit

This RIMLANCE kit supplies two 4 GB DDR4 SO-DIMM modules for a total of 8 GB. It targets notebook owners who want a straightforward capacity increase without opening the chassis more than once. The unbuffered, non-ECC design matches the majority of consumer laptop slots.

260-pin DDR4 SO-DIMM form factor

Each module uses the standard 260-pin DDR4 SO-DIMM edge connector and runs at 1.2 V. The low voltage reduces power draw and heat output, which helps preserve battery life during mobile use. CL19 latency at 2666 MHz delivers stable timing for everyday workloads.

Check your laptop before ordering

Verify that the system accepts DDR4 SO-DIMM memory and has two free slots or can replace existing modules in pairs. Confirm the motherboard supports 2666 MHz operation and 1.2 V modules. Ensure the BIOS is current enough to recognise the new capacity.

How it compares

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

Price $40.99
Cheaper than about 64% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $5.12 per GB
Cheaper than about 63% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameRIMLANCE
Model nameRSO21300S8C2K8
Total capacity8 GB (2 × 4 GB)
Product type260-Pin DDR4 SO-DIMM
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered

Questions about this item

What does the PC4-21300 rating mean for real-world speed on this DDR4 2666 MHz kit?

PC4-21300 is the JEDEC designation for DDR4 2666; the modules run at 2666 MHz with CL19 timing, so actual bandwidth depends on the laptop's memory controller.

Will these 260-pin SODIMM sticks fit my laptop's memory slots?

They require standard DDR4 SO-DIMM slots with 260 pins; check that your notebook uses DDR4 SO-DIMM and has two free slots for the 2 x 4 GB kit.

How do I install the two modules, and what step do people often miss?

Power off, unplug, open the memory bay, insert each stick at an angle until the gold contacts disappear, then press down firmly until both side clips click — skipping the click leaves the module loose.

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