Build: Black aluminum heat spreader, no RGB, 33 mm tall
Note: Desktop only. Not for laptops (SO-DIMM) or DDR5 motherboards
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KLEVV BOLT X 16GB Kit (2x8GB) DDR4 3600MHz CL18 Desktop Gaming RAM, XMP 2.0, Black Heatsink | KD48GU880-36A180U
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The KLEVV BOLT X 16GB (2 x 8GB) DDR4-3600 CL18 kit is a low-profile gaming memory pair for DDR4 desktops: two 8GB unbuffered DIMMs under a black aluminum heat spreader, no RGB, rated for 3600MT/s through Intel XMP 2.0 or the AMD overclocking profile.
It is aimed at DDR4 gaming builds on AMD Ryzen and Intel platforms that allow memory overclocking, where a matched dual-channel pair at 3600MT/s gives the CPU noticeably more bandwidth than a single stick or a basic JEDEC kit. KLEVV is the memory brand of Essencore, and the BOLT X line is its no-lighting, slim heat spreader series.
Key Features and What They Mean
3600MT/s CL18 through XMP
Out of the box the modules start at the SPD default of 2666MT/s CL19, 1.2V. Enabling the Intel XMP 2.0 or AMD overclocking profile in BIOS sets them to 3600MT/s at 18-22-22-42, 1.35V, which is the speed this kit is sold for. At 3600 CL18 the first-word latency works out to about 10.0 ns (Netcodex calculation), quicker than a standard DDR4-3200 CL22 stick at about 13.75 ns, with higher bandwidth on top.
Dual-channel 2 x 8GB
Two identical modules fill both memory channels on a typical consumer board, which is where most of the performance of a RAM upgrade comes from. 16GB total suits gaming and everyday use; if you edit video, run virtual machines or keep a lot open while gaming, a 32GB kit is the safer size.
Slim aluminum heat spreader
The heat spreader is 99.5% pure aluminum and the modules measure 33 mm tall and 6 mm thick (KLEVV). In our assessment that is only a little taller than a bare DIMM, so large air coolers that overhang the first slot are rarely a problem. The extra metal also helps at 1.35V in a warm room, though case airflow still matters more than the heat spreader itself.
Competitive Positioning
BOLT X sits in the mainstream gaming segment: faster than JEDEC-standard DDR4-3200 CL22 modules, without the RGB lighting or the tight timings of premium kits. Its strengths are the 3600MT/s rating, low height and clean look. The trade-off, noted in an independent review of the 2 x 16GB BOLT X 3600 kit, is that KLEVV tuned the XMP timings conservatively; that reviewer got better results by tightening timings manually. For most buyers who just switch XMP on, it delivers its rated speed where the platform supports it.
Philippine Buyer Perspective
Our Take
For a DDR4 gaming PC in the Philippines, 2 x 8GB at 3600MT/s is a sensible pairing with Ryzen 5000 or 3000 CPUs and with Intel boards that support memory overclocking. The main mistake to avoid is installing it and never turning on XMP, which leaves it at 2666MT/s. Rooms without aircon get warm, so keep at least one intake and one exhaust fan running; the low-profile spreader will not fix a case with no airflow. If your board has four slots and you may want 32GB later, buying a 2 x 16GB kit now is usually better than adding a second 2 x 8GB pair, because four sticks can be harder to run at full XMP speed.
Known Compatibility and Setup Notes
Required: This is a desktop DDR4 U-DIMM kit. It does not fit laptops (SO-DIMM) and does not work in DDR5 or DDR3 motherboards.
Required for rated speed: Enable Intel XMP or the AMD overclocking profile in BIOS. Until it is enabled, the memory runs at its default SPD speed of 2666MT/s (KLEVV).
Possible consideration: Achievable speed depends on the motherboard and CPU (KLEVV). Intel chipsets that lock memory overclocking, such as the 400-series H410, B460 and H470, keep the kit at the speed the CPU officially supports instead of 3600MT/s.
Recommended: Install both sticks in the two slots the motherboard manual marks for dual-channel use, usually A2 and B2.
Who Should Buy This
DDR4 gamers on Ryzen or unlocked Intel boards: A matched 3600MT/s dual-channel pair with XMP and a clean, non-RGB look.
Builders with big air coolers: The 33 mm module height leaves room under coolers that overhang the memory slots.
Upgraders from a single 8GB stick: Moving to a matched 2 x 8GB dual-channel kit is one of the more noticeable upgrades on an older DDR4 gaming PC.
KLEVV BOLT X DDR4-3600 16GB Kit (2 x 8GB) Specifications
General
Brand
KLEVV (Essencore)
Series
BOLT X DDR4 OC/Gaming memory
Part Number / SKU
KD48GU880-36A180U
Kit Configuration
16GB kit, 2 x 8GB modules. The single 8GB module is a separate SKU, KD48GU880-36A180T
Color
Black aluminum heat spreader, no RGB lighting
EAN
4895194965930
Memory
Memory Type
DDR4 SDRAM
Form Factor
288-pin DDR4 Unbuffered DIMM (desktop U-DIMM). Not a laptop SO-DIMM
Tested Speed (XMP)
3600MT/s (PC4-28800)
Tested Timing (XMP)
18-22-22-42
Tested Voltage (XMP)
1.35V
Default SPD Speed
2666MT/s
SPD Timing
19-19-19-43
SPD Voltage
1.2V
True Latency at 3600 CL18
10.0 ns (Netcodex calculation: 18 x 2000 / 3600)
Profile Support
Intel XMP 2.0, AMD overclocking profile
DRAM per Module
8 ICs, 1G x 8, single-sided (KLEVV/Integral product sheet)
Physical
Module Dimensions
133 x 33 x 6 mm (L x H x thickness)
Heat Spreader
99.5% pure aluminum, patterned design
RGB Lighting
No
Retail Package Size
190 x 145 x 7 mm, 53 g (Integral product sheet)
Compatibility
Fits
Desktop motherboards with DDR4 DIMM slots. Not compatible with DDR5 or DDR3 boards, or with laptops
Note
The 3600MT/s rating needs the Intel XMP or AMD overclocking profile enabled in BIOS; without it the kit runs at 2666MT/s. Achievable speed depends on the motherboard and CPU (KLEVV)
Packaging Weight
0.26 kg
Packaging Dimensions (L×W×H)
22 × 17.5 × 3.7 cm
Brand
Klevv
Desktop RAM
DDR4
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