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Astrum CL640 manufacturer reference: 90 W, 20 V DC / 4.5 A. Supplied connector identity needs confirmation; do not rely on Square Slim Tip wording alone. Match the exact laptop power requirements.
R299.00
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Astrum CL640 · 90 W model reference
The Astrum CL640 manufacturer reference specifies a 90 W adapter with 20 V DC output at 4.5 A. That electrical specification is only part of a replacement-charger match. Confirm the supplied connector, polarity and the laptop’s original power requirements before ordering: the listing’s Square Slim Tip wording has not been reconciled with the model’s round-connector reference.
A model-specific match
Compare the laptop’s required voltage, current, connector geometry and polarity with the exact supplied charger. A Lenovo brand name or similar wattage does not establish compatibility. Do not treat a round barrel connection and a rectangular Slim Tip connection as interchangeable.
Home and office power
The manufacturer lists 100–240 V AC input at 50/60 Hz and Smart IC control for this model. The output rating is a capacity reference, not constant wall-socket consumption. Confirm the required mains lead and plug for your location; no particular supplied lead or universal device list is established here.
Connector confirmation is required before purchase. Match the original adapter label, voltage, current, physical tip and polarity. Do not substitute a round barrel tip for a rectangular Slim Tip or assume that every Lenovo laptop uses the same charger.
| Brand / model | Astrum CL640 |
|---|---|
| Commercial SKU | A90564-B_1019388 |
| Manufacturer base part | A90564-B |
| Existing EAN / GTIN | 4897033645157 |
| Reference output capacity | 90 W |
| Reference DC output | 20 V / 4.5 A |
| Reference AC input | 100–240 V AC, 1.8 A, 50/60 Hz |
| Supplied connector | Identity pending confirmation; commercial Slim Tip wording is not verified |
|---|---|
| Manufacturer connector reference | Round barrel: 7.9 mm outer dimension; 5.4/5.5 mm inner references conflict |
| Polarity / identification pin | Not established; match the exact supplied adapter and laptop |
| Laptop compatibility | Exact model and electrical/connector match required; not universal Lenovo support |
| Reference body dimensions (L × W × H) | 132 × 57 × 31 mm |
| Reference weight | Approximately 250 g; model reference, not independently measured supplied unit |
| Manufacturer housing reference | Flame-retardant material, 94 V-0 grade claim; not a complete-adapter certification statement |
|---|---|
| Control reference | Smart IC power-output control |
| Mains lead / plug | Confirm required connector and supplied regional lead |
| Power scope | Output capacity is not constant electricity consumption |
| Supplied-box scope | Exact charger tip and any mains accessories require confirmation |
Connector confirmation is required before purchase. Match the original adapter label, voltage, current, physical tip and polarity. Do not substitute a round barrel tip for a rectangular Slim Tip or assume that every Lenovo laptop uses the same charger.
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