الموجه قرب المقبس.

Because Arabic usually omits the present-tense verb to be in simple statements.

So الموجه قرب المقبس is a normal present-tense sentence in Arabic. English needs is, but Arabic does not. The idea is simply:

• الموجه = the router
• قرب المقبس = near the socket

So the sentence structure is perfectly complete in Arabic without a separate word for is.

This is a nominal sentence in Arabic.

• الموجه is the subject/topic (مبتدأ)
• قرب المقبس is the predicate (خبر), giving the location

More specifically:

• قرب is a word of location, meaning near
• المقبس is the noun connected to it: the socket / the outlet

So the whole sentence means that the router’s location is near the socket.

Not exactly in the strict grammatical sense.

In English, learners often think of قرب as meaning near, so it feels like a preposition. But in Arabic grammar, قرب is often treated as a noun used adverbially or a word of location.

That matters because it behaves a bit differently from a simple preposition:

• it forms a construction with the following noun
• the following noun is put in the genitive

So قرب المقبس literally works more like the nearness of the socket or at the vicinity of the socket, even though natural English just says near the socket.

Because قرب forms an iḍāfa-type construction with the noun after it.

So in careful fully inflected Arabic, you would analyze it like this:

• الموجّهُ = nominative, because it is the subject
• قربَ = accusative as an adverbial expression of place
• المقبسِ = genitive, because it is attached to قرب

That is why the last word would take a genitive ending in full formal grammar.

A careful fully vowelled version is:

المُوَجِّهُ قُرْبَ المَقْبَسِ

A few useful notes:

• المُوَجِّهُ = al-muwajjihu
• قُرْبَ = qurba
• المَقْبَسِ = al-maqbasi

In normal pause, many speakers drop the final short case vowels, so you may hear something closer to:

al-muwajjih qurb al-maqbas

Yes, absolutely.

That version is also very natural and very common:

الموجه قريب من المقبس

The difference is mainly structural:

• قرب المقبس = a compact location expression
• قريب من المقبس = uses the adjective قريب plus the preposition من

Both are correct. For many learners, قريب من feels easier at first because it matches English more transparently.

They are related, but they are not used the same way.

• قرب in this sentence is a location expression: near
• قريب is an adjective meaning near / close

So:

• الموجه قرب المقبس = the router is near the socket
• الموجه قريب من المقبس = the router is close to the socket

Both can express a very similar idea, but the grammar is different.

Because both nouns are definite here.

That usually means the speaker has specific things in mind:

• الموجه = the router
• المقبس = the socket / outlet

If you wanted an indefinite meaning, you could make one or both nouns indefinite instead, depending on the context.

For example, in careful formal Arabic:

• موجّهٌ قربَ مقبسٍ = a router near a socket

But in real usage, definiteness often depends on what is already known in the situation.

No. الموجه can have different meanings depending on context.

It can mean things like:

• router in a technical context
• guide
• director
• supervisor
• one who directs

So the exact meaning comes from the topic being discussed. In a technology context, الموجه is commonly understood as router.

In both words, the ل in ال is pronounced clearly.

That is because م is a moon letter, not a sun letter.

So you pronounce:

• al-muwajjih
• al-maqbas

The l sound does not disappear here.

Arabic does allow some flexibility, but this order is the most straightforward and neutral for a learner:

الموجه قرب المقبس

If you change the order, the emphasis may change, and the sentence can sound more marked or literary.

For example, fronting the location is possible in some contexts, but it is not the best default pattern for beginners. So if you are learning basic MSA sentence structure, this version is the safest one to imitate.