Kingston KCP556SS6-8 — 8GB DDR5-5600 SO-DIMM for Laptops
8GB DDR55600 MT/s · CL46Non-ECC Unbuffered262-pin SO-DIMM
The Kingston KCP556SS6-8 is an 8GB DDR5 SO-DIMM running at 5600 MT/s, CL46 and 1.1V — a laptop-size memory module for notebooks, mini PCs and small-form-factor desktops that use DDR5 SO-DIMM slots.
It belongs to Kingston's branded, system-tested memory line, which Kingston says is guaranteed to be compatible and backed by a lifetime warranty. Electrically it is a standard JEDEC DDR5-5600 non-ECC unbuffered module, single rank (1Rx16) built on 16Gbit DRAM, so it is a straightforward way to add a second 8GB module to a laptop that shipped with one, or to replace a failed one.
Before you order: This is a DDR5 laptop SO-DIMM (262-pin). It will not fit DDR4 laptops, desktop DIMM slots or laptops with soldered-only memory. Some distributor listings describe it as ECC — Kingston lists it as non-ECC, so it is not suitable where ECC SO-DIMMs are required.
What's in the Box
- 1 × Kingston 8GB DDR5-5600 SO-DIMM module (KCP556SS6-8)
- Retail packaging — no screws or software; the module clips into a standard DDR5 SO-DIMM slot
What It Means in Practice
- Adding this to a laptop that came with a single 8GB module gives 16GB and enables dual-channel operation — a noticeable gain for integrated graphics and multitasking.
- If your platform supports less than 5600 MT/s (for example 4800 or 5200), the module automatically runs at the speed the laptop sets.
- For the best result pair it with an identical 8GB module; mixing sizes usually works but may reduce dual-channel efficiency.
- Many thin laptops have one soldered bank plus one free slot — check how much memory is already on the board before ordering.
What Will Not Work
- DDR4 laptops or mini PCs — the notch and pin layout are different and it will not insert
- Desktop PCs with full-size 288-pin DDR5 DIMM slots
- Mobile workstations that require ECC SO-DIMMs (this module is non-ECC)
- Laptops whose memory is fully soldered with no SO-DIMM slot
Key Features
DDR5-5600
Runs at 5600 MT/s with CL46 timings, the JEDEC standard for current DDR5 laptops.
Low 1.1V operation
DDR5 runs at 1.1V with on-module power management, keeping heat and battery draw down.
Single rank 1Rx16
An 8GB single-rank module built on 16Gbit DRAM — the common configuration for laptop upgrades.
Lifetime warranty
Kingston backs this line with a lifetime warranty; claims are handled through Singular.
Technical Specifications
| Identification |
| Part Number |
KCP556SS6-8 |
| EAN / GTIN |
0740617335019 |
| Brand |
Kingston |
| Memory |
| Capacity |
8GB (1 × 8GB) |
| Type |
DDR5 SO-DIMM |
| Speed |
5600 MT/s |
| CAS latency |
CL46 |
| Voltage |
1.1V |
| Rank / organisation |
1Rx16 (single rank), 16Gbit DRAM |
| Error correction |
Non-ECC |
| Buffering |
Unbuffered |
| Pins |
262-pin |
| Compatibility |
| Form factor |
Laptop / notebook SO-DIMM |
| Typical use |
DDR5 notebooks, mini PCs and small-form-factor desktops |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Lifetime warranty per Kingston — claims handled through Singular |
Frequently Asked Questions
Will it work with the 8GB module already in my laptop?
Yes, if that module is DDR5 SO-DIMM. Matching speed and capacity gives the cleanest dual-channel setup; a slower existing module makes both run at the lower speed.
Is 8GB enough?
For office work and browsing 8GB per slot (16GB total) is a good baseline. For heavy multitasking, virtual machines or creative software consider 16GB or 32GB modules instead.
Does it work in a DDR5 desktop?
Only in desktops or mini PCs that use SO-DIMM slots. Standard desktop motherboards use full-size DIMMs.
Singular Expert Insight · Buyer's Guide
The KCP line is Kingston's system-tested memory, which is why it is a safe first choice when you simply need the right module for a branded laptop. Check the speed and capacity of what is already installed so the new module matches. Browse our
memory (RAM) range for other capacities and server modules.
✓ Buy it if your laptop or mini PC uses DDR5 SO-DIMMs and you want an 8GB module to add or replace.
✕ Skip it if your system is DDR4, uses full-size desktop DIMMs, or requires ECC memory.
→ Also consider a 16GB DDR5 SO-DIMM if you want 32GB total from two slots.
Not sure it fits your laptop? Send us the exact model and we will confirm compatibility before you order.